Maybe this additional information will help:

*-network                 
       description: Ethernet interface
       product: Ethernet Connection (2) I219-V
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 00
       serial: "removed"
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 
10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e 
driverversion=3.2.6-k duplex=full firmware=0.2-4 ip="removed" latency=0 
link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:125 memory:df300000-df31ffff



dmesg | grep e1000e
[    2.404883] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[    2.415926] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    2.427096] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to 
dynamic conservative mode
[    2.690764] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered PHC 
clock
[    2.762812] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) 
70:85:c2:7d:b6:b5
[    2.762813] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection
[    2.762867] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: FFFFFF-0FF
[    2.866293] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0
[   13.818417] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow 
Control: Rx/Tx

Here's the logs from the NetworkManager service over the last few days.

Aug 01 03:47:21 t2trvs01 NetworkManager[1358]: <info>  [1533109641.5958] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 01 03:47:23 t2trvs01 NetworkManager[1358]: <info>  [1533109643.5981] device 
(enp0s31f6): state change: activated -> deactivating (reason 'user-requested', 
sys-iface-state: 'managed')
Aug 01 03:47:23 t2trvs01 NetworkManager[1358]: <info>  [1533109643.5986] 
manager: NetworkManager state is now DISCONNECTING
Aug 01 03:47:23 t2trvs01 NetworkManager[1358]: <info>  [1533109643.6514] audit: 
op="device-disconnect" interface="enp0s31f6" ifindex=2 pid=2705 uid=1000 
result="success"
Aug 01 03:47:23 t2trvs01 NetworkManager[1358]: <info>  [1533109643.6517] device 
(enp0s31f6): state change: deactivating -> disconnected (reason 
'user-requested', sys-iface-state: 'managed')
Aug 01 03:47:23 t2trvs01 NetworkManager[1358]: <info>  [1533109643.6844] dhcp4 
(enp0s31f6): canceled DHCP transaction, DHCP client pid 1840
Aug 01 03:47:23 t2trvs01 NetworkManager[1358]: <info>  [1533109643.6845] dhcp4 
(enp0s31f6): state changed bound -> done
Aug 01 03:47:23 t2trvs01 NetworkManager[1358]: <info>  [1533109643.6853] 
manager: NetworkManager state is now DISCONNECTED
Aug 01 03:47:30 t2trvs01 NetworkManager[1358]: <info>  [1533109650.9943] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 01 03:47:30 t2trvs01 NetworkManager[1358]: <info>  [1533109650.9944] audit: 
op="connection-activate" uuid="0fb5685d-476e-39b6-8090-4f5b35b00deb" 
name="netplan-enp0s31f6" pid=2705 uid=1000 result="s
Aug 01 03:47:30 t2trvs01 NetworkManager[1358]: <info>  [1533109650.9945] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 01 03:47:30 t2trvs01 NetworkManager[1358]: <info>  [1533109650.9946] 
manager: NetworkManager state is now CONNECTING
Aug 01 03:47:30 t2trvs01 NetworkManager[1358]: <info>  [1533109650.9947] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 01 03:47:30 t2trvs01 NetworkManager[1358]: <info>  [1533109650.9951] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 01 03:47:30 t2trvs01 NetworkManager[1358]: <info>  [1533109650.9953] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 01 03:47:30 t2trvs01 NetworkManager[1358]: <info>  [1533109650.9962] dhcp4 
(enp0s31f6): dhclient started with pid 19238
Aug 01 03:47:31 t2trvs01 dhclient[19238]: DHCPREQUEST of 192.168.10.46 on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x1f78fd4)
Aug 01 03:47:31 t2trvs01 dhclient[19238]: DHCPACK of 192.168.10.46 from 
192.168.10.1
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0423] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0424] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0424] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0425] dhcp4 
(enp0s31f6):   lease time 259200
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0425] dhcp4 
(enp0s31f6):   nameserver '192.168.xx,xx'
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0426] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0426] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0426] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0426] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0466] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0476] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0477] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0478] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 01 03:47:31 t2trvs01 dhclient[19238]: bound to 192.168.10.46 -- renewal in 
98719 seconds.
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0897] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0898] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 01 03:47:31 t2trvs01 NetworkManager[1358]: <info>  [1533109651.0900] device 
(enp0s31f6): Activation: successful, device activated.
Aug 01 03:47:43 t2trvs01 NetworkManager[1358]: <info>  [1533109663.2399] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 01 22:42:21 t2trvs01 NetworkManager[1358]: <info>  [1533177741.5958] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 01 22:43:25 t2trvs01 NetworkManager[1358]: <info>  [1533177805.7318] device 
(enp0s31f6): state change: activated -> deactivating (reason 'user-requested', 
sys-iface-state: 'managed')
Aug 01 22:43:25 t2trvs01 NetworkManager[1358]: <info>  [1533177805.7322] 
manager: NetworkManager state is now DISCONNECTING
Aug 01 22:43:25 t2trvs01 NetworkManager[1358]: <info>  [1533177805.7708] audit: 
op="device-disconnect" interface="enp0s31f6" ifindex=2 pid=2705 uid=1000 
result="success"
Aug 01 22:43:25 t2trvs01 NetworkManager[1358]: <info>  [1533177805.7711] device 
(enp0s31f6): state change: deactivating -> disconnected (reason 
'user-requested', sys-iface-state: 'managed')
Aug 01 22:43:25 t2trvs01 NetworkManager[1358]: <info>  [1533177805.8036] dhcp4 
(enp0s31f6): canceled DHCP transaction, DHCP client pid 19238
Aug 01 22:43:25 t2trvs01 NetworkManager[1358]: <info>  [1533177805.8037] dhcp4 
(enp0s31f6): state changed bound -> done
Aug 01 22:43:25 t2trvs01 NetworkManager[1358]: <info>  [1533177805.8047] 
manager: NetworkManager state is now DISCONNECTED
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6186] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6189] audit: 
op="connection-activate" uuid="0fb5685d-476e-39b6-8090-4f5b35b00deb" 
name="netplan-enp0s31f6" pid=2705 uid=1000 result="s
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6193] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6196] 
manager: NetworkManager state is now CONNECTING
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6205] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6219] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6227] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6243] dhcp4 
(enp0s31f6): dhclient started with pid 31439
Aug 01 22:43:31 t2trvs01 dhclient[31439]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x2178bd1f)
Aug 01 22:43:31 t2trvs01 dhclient[31439]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6621] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6622] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6622] dhcp4 
(enp0s31f6):   gateway 192.168.xx.xx
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6622] dhcp4 
(enp0s31f6):   lease time 259200
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6622] dhcp4 
(enp0s31f6):   nameserver '192.168.xx.xx'
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6622] dhcp4 
(enp0s31f6):   nameserver 'xx.xx.xx.xx'
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6622] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6622] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6622] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6631] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6636] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6638] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.6638] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 01 22:43:31 t2trvs01 dhclient[31439]: bound to 192.168.xx.xx -- renewal in 
110815 seconds.
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.7023] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.7024] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 01 22:43:31 t2trvs01 NetworkManager[1358]: <info>  [1533177811.7026] device 
(enp0s31f6): Activation: successful, device activated.
Aug 01 22:47:21 t2trvs01 NetworkManager[1358]: <info>  [1533178041.6955] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.0602] device 
(enp0s31f6): state change: activated -> deactivating (reason 'user-requested', 
sys-iface-state: 'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.0603] 
manager: NetworkManager state is now DISCONNECTING
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.1131] audit: 
op="device-disconnect" interface="enp0s31f6" ifindex=2 pid=7083 uid=0 
result="success"
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.1132] device 
(enp0s31f6): state change: deactivating -> disconnected (reason 
'user-requested', sys-iface-state: 'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.1459] dhcp4 
(enp0s31f6): canceled DHCP transaction, DHCP client pid 31439
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.1459] dhcp4 
(enp0s31f6): state changed bound -> done
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.1467] 
manager: NetworkManager state is now DISCONNECTED
Aug 01 23:42:46 t2trvs01 systemd[1]: Stopping Network Manager...
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.1692] caught 
SIGTERM, shutting down normally.
Aug 01 23:42:46 t2trvs01 NetworkManager[1358]: <info>  [1533181366.1780] 
exiting (success)
Aug 01 23:42:46 t2trvs01 systemd[1]: Stopped Network Manager.
Aug 01 23:42:46 t2trvs01 systemd[1]: Starting Network Manager...
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.2577] 
NetworkManager (version 1.10.6) is starting... (after a restart)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.2578] Read 
config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 
20-connectivity-ubuntu.conf, no-mac-addr-change
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.2601] 
manager[0x55c763131060]: monitoring kernel firmware directory '/lib/firmware'.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.2602] 
monitoring ifupdown state file '/run/network/ifstate'.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5280] 
hostname: hostname: using hostnamed
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5281] 
hostname: hostname changed from (none) to "t2trvs01"
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5286] 
dns-mgr[0x55c76314b140]: init: dns=systemd-resolved, rc-manager=symlink, 
plugin=systemd-resolved
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5297] 
manager[0x55c763131060]: rfkill: WiFi hardware radio set enabled
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5297] 
manager[0x55c763131060]: rfkill: WWAN hardware radio set enabled
Aug 01 23:42:46 t2trvs01 systemd[1]: Started Network Manager.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5351] init!
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5354]       
interface-parser: parsing file /etc/network/interfaces
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5355]       
interface-parser: finished parsing file /etc/network/interfaces
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5355] 
management mode: unmanaged
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5361] 
devices added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5362] device 
added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6): no ifupdown configuration found.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5362] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5362] device 
added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration 
found.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5362] end 
_init.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5363] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. (/usr/lib/
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5363] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5364] 
(1662423808) ... get_connections.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5364] 
(1662423808) ... get_connections (managed=false): return empty list.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5548] 
keyfile: new connection 
/run/NetworkManager/system-connections/netplan-enp0s31f6 
(0fb5685d-476e-39b6-8090-4f5b35b00deb,"netplan-
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5551] get 
unmanaged devices count: 0
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5551] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5552] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5552] 
manager: Networking is enabled by state file
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5553] 
dhcp-init: Using DHCP client 'dhclient'
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5554] Loaded 
device plugin: NMBondDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5554] Loaded 
device plugin: NMBridgeDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5554] Loaded 
device plugin: NMDummyDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5555] Loaded 
device plugin: NMEthernetDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5555] Loaded 
device plugin: NMInfinibandDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5555] Loaded 
device plugin: NMIPTunnelDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5555] Loaded 
device plugin: NMMacsecDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5556] Loaded 
device plugin: NMMacvlanDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5556] Loaded 
device plugin: NMPppDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5556] Loaded 
device plugin: NMTunDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5556] Loaded 
device plugin: NMVethDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5557] Loaded 
device plugin: NMVlanDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5557] Loaded 
device plugin: NMVxlanDeviceFactory (internal)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5561] Loaded 
device plugin: NMAtmManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5571] Loaded 
device plugin: NMBluezManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5579] Loaded 
device plugin: NMTeamFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5582] Loaded 
device plugin: NMWifiFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5585] Loaded 
device plugin: NMWwanFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5595] device 
(lo): carrier: link connected
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5602] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5606] device 
(enp0s31f6): carrier: link connected
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5615] 
manager: (enp0s31f6): new Ethernet device 
(/org/freedesktop/NetworkManager/Devices/2)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5625] device 
(enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', 
sys-iface-state: 'external')
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5710] 
modem-manager: ModemManager available
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5743] device 
(enp0s31f6): state change: unavailable -> disconnected (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5818] 
policy: auto-activating connection 'netplan-enp0s31f6'
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5829] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5830] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5831] 
manager: NetworkManager state is now CONNECTING
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5833] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5837] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5842] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.5852] dhcp4 
(enp0s31f6): dhclient started with pid 7177
Aug 01 23:42:46 t2trvs01 dhclient[7177]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x261e23d6)
Aug 01 23:42:46 t2trvs01 dhclient[7177]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6221] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6222] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6222] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6222] dhcp4 
(enp0s31f6):   lease time 259200
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6222] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6222] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6222] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6222] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6222] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6232] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6237] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6238] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6239] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6518] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6518] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6520] device 
(enp0s31f6): Activation: successful, device activated.
Aug 01 23:42:46 t2trvs01 NetworkManager[7132]: <info>  [1533181366.6522] 
manager: startup complete
Aug 01 23:42:46 t2trvs01 dhclient[7177]: bound to 192.168.xx.xx -- renewal in 
101476 seconds.
Aug 01 23:42:58 t2trvs01 NetworkManager[7132]: <info>  [1533181378.7439] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.2369] device 
(enp0s31f6): state change: activated -> deactivating (reason 'user-requested', 
sys-iface-state: 'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.2370] 
manager: NetworkManager state is now DISCONNECTING
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.2859] audit: 
op="device-disconnect" interface="enp0s31f6" ifindex=2 pid=7281 uid=0 
result="success"
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.2861] device 
(enp0s31f6): state change: deactivating -> disconnected (reason 
'user-requested', sys-iface-state: 'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.3187] dhcp4 
(enp0s31f6): canceled DHCP transaction, DHCP client pid 7177
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.3187] dhcp4 
(enp0s31f6): state changed bound -> done
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.3197] 
manager: NetworkManager state is now DISCONNECTED
Aug 01 23:43:12 t2trvs01 systemd[1]: Stopping Network Manager...
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.3436] caught 
SIGTERM, shutting down normally.
Aug 01 23:43:12 t2trvs01 NetworkManager[7132]: <info>  [1533181392.3481] 
exiting (success)
Aug 01 23:43:12 t2trvs01 systemd[1]: Starting Network Manager...
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4044] 
NetworkManager (version 1.10.6) is starting... (after a restart)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4044] Read 
config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 
20-connectivity-ubuntu.conf, no-mac-addr-change
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4069] 
manager[0x563cf46e2060]: monitoring kernel firmware directory '/lib/firmware'.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4069] 
monitoring ifupdown state file '/run/network/ifstate'.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4078] 
hostname: hostname: using hostnamed
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4078] 
hostname: hostname changed from (none) to "t2trvs01"
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4079] 
dns-mgr[0x563cf46fd940]: init: dns=systemd-resolved, rc-manager=symlink, 
plugin=systemd-resolved
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4083] 
manager[0x563cf46e2060]: rfkill: WiFi hardware radio set enabled
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4083] 
manager[0x563cf46e2060]: rfkill: WWAN hardware radio set enabled
Aug 01 23:43:12 t2trvs01 systemd[1]: Started Network Manager.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4100] init!
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4101]       
interface-parser: parsing file /etc/network/interfaces
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4101]       
interface-parser: finished parsing file /etc/network/interfaces
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4102] 
management mode: unmanaged
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4103] 
devices added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4103] device 
added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6): no ifupdown configuration found.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4104] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4104] device 
added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration 
found.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4104] end 
_init.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4104] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. (/usr/lib/
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4104] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4104] 
(-193871680) ... get_connections.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4104] 
(-193871680) ... get_connections (managed=false): return empty list.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4156] 
keyfile: new connection 
/run/NetworkManager/system-connections/netplan-enp0s31f6 
(0fb5685d-476e-39b6-8090-4f5b35b00deb,"netplan-
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4157] get 
unmanaged devices count: 0
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4157] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4157] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4158] 
manager: Networking is enabled by state file
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4158] 
dhcp-init: Using DHCP client 'dhclient'
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4158] Loaded 
device plugin: NMBondDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4158] Loaded 
device plugin: NMBridgeDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4158] Loaded 
device plugin: NMDummyDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMEthernetDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMInfinibandDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMIPTunnelDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMMacsecDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMMacvlanDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMPppDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMTunDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMVethDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMVlanDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4159] Loaded 
device plugin: NMVxlanDeviceFactory (internal)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4161] Loaded 
device plugin: NMAtmManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4165] Loaded 
device plugin: NMBluezManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4168] Loaded 
device plugin: NMTeamFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4169] Loaded 
device plugin: NMWifiFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4170] Loaded 
device plugin: NMWwanFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4175] device 
(lo): carrier: link connected
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4178] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4180] device 
(enp0s31f6): carrier: link connected
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4183] 
manager: (enp0s31f6): new Ethernet device 
(/org/freedesktop/NetworkManager/Devices/2)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4188] device 
(enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', 
sys-iface-state: 'external')
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4240] device 
(enp0s31f6): state change: unavailable -> disconnected (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4246] 
policy: auto-activating connection 'netplan-enp0s31f6'
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4252] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4254] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4254] 
manager: NetworkManager state is now CONNECTING
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4269] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4272] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4277] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4297] dhcp4 
(enp0s31f6): dhclient started with pid 7353
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4344] 
modem-manager: ModemManager available
Aug 01 23:43:12 t2trvs01 dhclient[7353]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x1854f9c9)
Aug 01 23:43:12 t2trvs01 dhclient[7353]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4697] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4698] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4698] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4698] dhcp4 
(enp0s31f6):   lease time 259200
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4698] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4698] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4698] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4698] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4698] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4708] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4713] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4715] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4715] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 01 23:43:12 t2trvs01 dhclient[7353]: bound to 192.168.xx.xx -- renewal in 
104437 seconds.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4765] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4766] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4767] device 
(enp0s31f6): Activation: successful, device activated.
Aug 01 23:43:12 t2trvs01 NetworkManager[7331]: <info>  [1533181392.4770] 
manager: startup complete
Aug 01 23:43:24 t2trvs01 NetworkManager[7331]: <info>  [1533181404.5666] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 02 00:03:17 t2trvs01 NetworkManager[7331]: <info>  [1533182597.4758] 
modem-manager: ModemManager no longer available
Aug 02 00:03:17 t2trvs01 NetworkManager[7331]: <warn>  [1533182597.4925] error 
requesting auth for org.freedesktop.NetworkManager.wifi.share.open: 
Authorization check failed: Message recipient disconne
Aug 02 00:03:17 t2trvs01 NetworkManager[7331]: <warn>  [1533182597.5086] error 
requesting auth for org.freedesktop.NetworkManager.wifi.share.protected: 
Authorization check failed: Refusing activation, 
Aug 02 00:03:17 t2trvs01 NetworkManager[7331]: <warn>  [1533182597.5087] error 
requesting auth for org.freedesktop.NetworkManager.wifi.share.open: 
Authorization check failed: Refusing activation, D-Bus
Aug 02 00:03:19 t2trvs01 systemd[1]: Stopping Network Manager...
Aug 02 00:03:19 t2trvs01 NetworkManager[7331]: <info>  [1533182599.4298] caught 
SIGTERM, shutting down normally.
Aug 02 00:03:19 t2trvs01 NetworkManager[7331]: <info>  [1533182599.4796] 
exiting (success)
Aug 02 00:03:19 t2trvs01 systemd[1]: Stopped Network Manager.
-- Reboot --
Aug 02 00:03:52 t2trvs01 systemd[1]: Starting Network Manager...
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.3171] 
NetworkManager (version 1.10.6) is starting... (for the first time)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.3171] Read 
config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 
20-connectivity-ubuntu.conf, no-mac-addr-change
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.3200] 
manager[0x5579dd219070]: monitoring kernel firmware directory '/lib/firmware'.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.3200] 
monitoring ifupdown state file '/run/network/ifstate'.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9153] 
hostname: hostname: using hostnamed
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9153] 
hostname: hostname changed from (none) to "t2trvs01"
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9155] 
dns-mgr[0x5579dd234140]: init: dns=systemd-resolved, rc-manager=symlink, 
plugin=systemd-resolved
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9159] 
manager[0x5579dd219070]: rfkill: WiFi hardware radio set enabled
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9159] 
manager[0x5579dd219070]: rfkill: WWAN hardware radio set enabled
Aug 02 00:03:52 t2trvs01 systemd[1]: Started Network Manager.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9352] init!
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9353]       
interface-parser: parsing file /etc/network/interfaces
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9353]       
interface-parser: finished parsing file /etc/network/interfaces
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9353] 
management mode: unmanaged
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9355] 
devices added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9355] device 
added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6): no ifupdown configuration found.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9356] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9356] device 
added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration 
found.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9356] end 
_init.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9356] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. (/usr/lib/
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9356] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9356] 
(-584768320) ... get_connections.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9357] 
(-584768320) ... get_connections (managed=false): return empty list.
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9412] 
keyfile: new connection 
/run/NetworkManager/system-connections/netplan-enp0s31f6 
(0fb5685d-476e-39b6-8090-4f5b35b00deb,"netplan-
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9414] get 
unmanaged devices count: 0
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9414] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9414] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9414] 
manager: Networking is enabled by state file
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9415] 
dhcp-init: Using DHCP client 'dhclient'
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9417] Loaded 
device plugin: NMBondDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9417] Loaded 
device plugin: NMBridgeDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9417] Loaded 
device plugin: NMDummyDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMEthernetDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMInfinibandDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMIPTunnelDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMMacsecDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMMacvlanDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMPppDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMTunDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMVethDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMVlanDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9418] Loaded 
device plugin: NMVxlanDeviceFactory (internal)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9420] Loaded 
device plugin: NMAtmManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9429] Loaded 
device plugin: NMBluezManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9437] Loaded 
device plugin: NMTeamFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9439] Loaded 
device plugin: NMWifiFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9441] Loaded 
device plugin: NMWwanFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9447] device 
(lo): carrier: link connected
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9451] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9456] 
manager: (enp0s31f6): new Ethernet device 
(/org/freedesktop/NetworkManager/Devices/2)
Aug 02 00:03:52 t2trvs01 NetworkManager[1171]: <info>  [1533182632.9461] device 
(enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', 
sys-iface-state: 'external')
Aug 02 00:03:53 t2trvs01 NetworkManager[1171]: <info>  [1533182633.1377] 
modem-manager: ModemManager available
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1700] device 
(enp0s31f6): carrier: link connected
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1701] device 
(enp0s31f6): state change: unavailable -> disconnected (reason 
'carrier-changed', sys-iface-state: 'managed')
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1706] 
policy: auto-activating connection 'netplan-enp0s31f6'
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1712] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1714] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1714] 
manager: NetworkManager state is now CONNECTING
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1716] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1720] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.1722] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2219] dhcp4 
(enp0s31f6): dhclient started with pid 1321
Aug 02 00:03:56 t2trvs01 dhclient[1321]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x61dba9ac)
Aug 02 00:03:56 t2trvs01 dhclient[1321]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6):   lease time 259200
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2659] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2665] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2669] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2670] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2670] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 02 00:03:56 t2trvs01 dhclient[1321]: bound to 192.168.10.46 -- renewal in 
125601 seconds.
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2722] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2722] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2725] device 
(enp0s31f6): Activation: successful, device activated.
Aug 02 00:03:56 t2trvs01 NetworkManager[1171]: <info>  [1533182636.2727] 
manager: startup complete
Aug 02 00:04:02 t2trvs01 NetworkManager[1171]: <info>  [1533182642.4517] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 02 00:07:19 t2trvs01 NetworkManager[1171]: <info>  [1533182839.7583] 
modem-manager: ModemManager no longer available
-- Reboot --
Aug 02 00:08:11 t2trvs01 systemd[1]: Starting Network Manager...
Aug 02 00:08:11 t2trvs01 NetworkManager[1604]: <info>  [1533182891.8332] 
NetworkManager (version 1.10.6) is starting... (for the first time)
Aug 02 00:08:11 t2trvs01 NetworkManager[1604]: <info>  [1533182891.8333] Read 
config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 
20-connectivity-ubuntu.conf, no-mac-addr-change
Aug 02 00:08:11 t2trvs01 NetworkManager[1604]: <info>  [1533182891.8361] 
manager[0x55cc730f3070]: monitoring kernel firmware directory '/lib/firmware'.
Aug 02 00:08:11 t2trvs01 NetworkManager[1604]: <info>  [1533182891.8362] 
monitoring ifupdown state file '/run/network/ifstate'.
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2347] 
hostname: hostname: using hostnamed
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2347] 
hostname: hostname changed from (none) to "t2trvs01"
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2350] 
dns-mgr[0x55cc7310e140]: init: dns=systemd-resolved, rc-manager=symlink, 
plugin=systemd-resolved
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2355] 
manager[0x55cc730f3070]: rfkill: WiFi hardware radio set enabled
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2355] 
manager[0x55cc730f3070]: rfkill: WWAN hardware radio set enabled
Aug 02 00:08:12 t2trvs01 systemd[1]: Started Network Manager.
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2564] init!
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2566]       
interface-parser: parsing file /etc/network/interfaces
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2566]       
interface-parser: finished parsing file /etc/network/interfaces
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2566] 
management mode: unmanaged
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2568] 
devices added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2568] device 
added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6): no ifupdown configuration found.
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2568] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2569] device 
added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration 
found.
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2569] end 
_init.
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2569] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. (/usr/lib/
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2569] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2569] 
(1930611904) ... get_connections.
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2569] 
(1930611904) ... get_connections (managed=false): return empty list.
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2623] 
keyfile: new connection 
/run/NetworkManager/system-connections/netplan-enp0s31f6 
(0fb5685d-476e-39b6-8090-4f5b35b00deb,"netplan-
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2624] get 
unmanaged devices count: 0
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2625] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2625] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2625] 
manager: Networking is enabled by state file
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2626] 
dhcp-init: Using DHCP client 'dhclient'
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2628] Loaded 
device plugin: NMBondDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2628] Loaded 
device plugin: NMBridgeDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2628] Loaded 
device plugin: NMDummyDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMEthernetDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMInfinibandDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMIPTunnelDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMMacsecDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMMacvlanDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMPppDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMTunDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMVethDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2629] Loaded 
device plugin: NMVlanDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2630] Loaded 
device plugin: NMVxlanDeviceFactory (internal)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2632] Loaded 
device plugin: NMAtmManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2643] Loaded 
device plugin: NMBluezManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2652] Loaded 
device plugin: NMTeamFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2655] Loaded 
device plugin: NMWifiFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2656] Loaded 
device plugin: NMWwanFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2662] device 
(lo): carrier: link connected
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2666] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2673] 
manager: (enp0s31f6): new Ethernet device 
(/org/freedesktop/NetworkManager/Devices/2)
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.2678] device 
(enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', 
sys-iface-state: 'external')
Aug 02 00:08:12 t2trvs01 NetworkManager[1604]: <info>  [1533182892.4580] 
modem-manager: ModemManager available
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3764] device 
(enp0s31f6): carrier: link connected
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3768] device 
(enp0s31f6): state change: unavailable -> disconnected (reason 
'carrier-changed', sys-iface-state: 'managed')
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3773] 
policy: auto-activating connection 'netplan-enp0s31f6'
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3779] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3781] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3782] 
manager: NetworkManager state is now CONNECTING
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3785] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3788] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.3793] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4254] dhcp4 
(enp0s31f6): dhclient started with pid 1893
Aug 02 00:08:15 t2trvs01 dhclient[1893]: DHCPREQUEST of 192.168.10.46 on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0xa5d3354)
Aug 02 00:08:15 t2trvs01 dhclient[1893]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6):   lease time 259200
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4614] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4621] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4625] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4626] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4627] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 02 00:08:15 t2trvs01 dhclient[1893]: bound to 192.168.xx.xx -- renewal in 
118436 seconds.
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4689] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4690] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4692] device 
(enp0s31f6): Activation: successful, device activated.
Aug 02 00:08:15 t2trvs01 NetworkManager[1604]: <info>  [1533182895.4695] 
manager: startup complete
Aug 02 00:08:27 t2trvs01 NetworkManager[1604]: <info>  [1533182907.5649] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 02 00:10:06 t2trvs01 NetworkManager[1604]: <info>  [1533183006.2014] 
modem-manager: ModemManager no longer available
Aug 02 00:10:08 t2trvs01 systemd[1]: Stopping Network Manager...
Aug 02 00:10:08 t2trvs01 NetworkManager[1604]: <info>  [1533183008.0479] caught 
SIGTERM, shutting down normally.
Aug 02 00:10:08 t2trvs01 NetworkManager[1604]: <info>  [1533183008.1008] 
exiting (success)
Aug 02 00:10:08 t2trvs01 systemd[1]: Stopped Network Manager.
-- Reboot --
Aug 02 00:10:36 t2trvs01 systemd[1]: Starting Network Manager...
Aug 02 00:10:36 t2trvs01 NetworkManager[1460]: <info>  [1533183036.6370] 
NetworkManager (version 1.10.6) is starting... (for the first time)
Aug 02 00:10:36 t2trvs01 NetworkManager[1460]: <info>  [1533183036.6371] Read 
config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 
20-connectivity-ubuntu.conf, no-mac-addr-change
Aug 02 00:10:36 t2trvs01 NetworkManager[1460]: <info>  [1533183036.6404] 
manager[0x5589398b2070]: monitoring kernel firmware directory '/lib/firmware'.
Aug 02 00:10:36 t2trvs01 NetworkManager[1460]: <info>  [1533183036.6404] 
monitoring ifupdown state file '/run/network/ifstate'.
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1323] 
hostname: hostname: using hostnamed
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1323] 
hostname: hostname changed from (none) to "t2trvs01"
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1326] 
dns-mgr[0x5589398cc940]: init: dns=systemd-resolved, rc-manager=symlink, 
plugin=systemd-resolved
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1329] 
manager[0x5589398b2070]: rfkill: WiFi hardware radio set enabled
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1329] 
manager[0x5589398b2070]: rfkill: WWAN hardware radio set enabled
Aug 02 00:10:37 t2trvs01 systemd[1]: Started Network Manager.
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1611] init!
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1612]       
interface-parser: parsing file /etc/network/interfaces
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1613]       
interface-parser: finished parsing file /etc/network/interfaces
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1613] 
management mode: unmanaged
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] 
devices added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] device 
added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6): no ifupdown configuration found.
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] device 
added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration 
found.
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] end 
_init.
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. (/usr/lib/
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] 
(965650624) ... get_connections.
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1615] 
(965650624) ... get_connections (managed=false): return empty list.
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1670] 
keyfile: new connection 
/run/NetworkManager/system-connections/netplan-enp0s31f6 
(0fb5685d-476e-39b6-8090-4f5b35b00deb,"netplan-
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1671] get 
unmanaged devices count: 0
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1672] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1672] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1672] 
manager: Networking is enabled by state file
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1672] 
dhcp-init: Using DHCP client 'dhclient'
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1674] Loaded 
device plugin: NMBondDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1674] Loaded 
device plugin: NMBridgeDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1674] Loaded 
device plugin: NMDummyDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1674] Loaded 
device plugin: NMEthernetDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1675] Loaded 
device plugin: NMInfinibandDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1675] Loaded 
device plugin: NMIPTunnelDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1675] Loaded 
device plugin: NMMacsecDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1675] Loaded 
device plugin: NMMacvlanDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1675] Loaded 
device plugin: NMPppDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1675] Loaded 
device plugin: NMTunDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1675] Loaded 
device plugin: NMVethDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1676] Loaded 
device plugin: NMVlanDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1676] Loaded 
device plugin: NMVxlanDeviceFactory (internal)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1678] Loaded 
device plugin: NMAtmManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1688] Loaded 
device plugin: NMBluezManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1696] Loaded 
device plugin: NMTeamFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1698] Loaded 
device plugin: NMWifiFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1700] Loaded 
device plugin: NMWwanFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1706] device 
(lo): carrier: link connected
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1710] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1717] 
manager: (enp0s31f6): new Ethernet device 
(/org/freedesktop/NetworkManager/Devices/2)
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.1723] device 
(enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', 
sys-iface-state: 'external')
Aug 02 00:10:37 t2trvs01 NetworkManager[1460]: <info>  [1533183037.3627] 
modem-manager: ModemManager available
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2702] device 
(enp0s31f6): carrier: link connected
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2705] device 
(enp0s31f6): state change: unavailable -> disconnected (reason 
'carrier-changed', sys-iface-state: 'managed')
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2711] 
policy: auto-activating connection 'netplan-enp0s31f6'
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2718] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2720] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2721] 
manager: NetworkManager state is now CONNECTING
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2724] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2728] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.2732] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3267] dhcp4 
(enp0s31f6): dhclient started with pid 1839
Aug 02 00:10:40 t2trvs01 dhclient[1839]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x18f7998e)
Aug 02 00:10:40 t2trvs01 dhclient[1839]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3552] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3552] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3552] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3552] dhcp4 
(enp0s31f6):   lease time 259200
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3552] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3552] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3553] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3553] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3553] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3558] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3563] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3564] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3564] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 02 00:10:40 t2trvs01 dhclient[1839]: bound to 192.168.xx.xx -- renewal in 
108852 seconds.
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3615] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3616] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3618] device 
(enp0s31f6): Activation: successful, device activated.
Aug 02 00:10:40 t2trvs01 NetworkManager[1460]: <info>  [1533183040.3621] 
manager: startup complete
Aug 02 00:10:46 t2trvs01 NetworkManager[1460]: <info>  [1533183046.4470] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 02 00:12:11 t2trvs01 NetworkManager[1460]: <info>  [1533183131.6646] 
modem-manager: ModemManager no longer available
-- Reboot --
Aug 02 00:12:56 t2trvs01 systemd[1]: Starting Network Manager...
Aug 02 00:12:56 t2trvs01 NetworkManager[1408]: <info>  [1533183176.7441] 
NetworkManager (version 1.10.6) is starting... (for the first time)
Aug 02 00:12:56 t2trvs01 NetworkManager[1408]: <info>  [1533183176.7441] Read 
config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 
20-connectivity-ubuntu.conf, no-mac-addr-change
Aug 02 00:12:56 t2trvs01 NetworkManager[1408]: <info>  [1533183176.7473] 
manager[0x55c8c7655070]: monitoring kernel firmware directory '/lib/firmware'.
Aug 02 00:12:56 t2trvs01 NetworkManager[1408]: <info>  [1533183176.7473] 
monitoring ifupdown state file '/run/network/ifstate'.
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3281] 
hostname: hostname: using hostnamed
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3281] 
hostname: hostname changed from (none) to "t2trvs01"
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3283] 
dns-mgr[0x55c8c766f140]: init: dns=systemd-resolved, rc-manager=symlink, 
plugin=systemd-resolved
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3287] 
manager[0x55c8c7655070]: rfkill: WiFi hardware radio set enabled
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3287] 
manager[0x55c8c7655070]: rfkill: WWAN hardware radio set enabled
Aug 02 00:12:57 t2trvs01 systemd[1]: Started Network Manager.
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3485] init!
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3486]       
interface-parser: parsing file /etc/network/interfaces
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3487]       
interface-parser: finished parsing file /etc/network/interfaces
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3487] 
management mode: unmanaged
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3488] 
devices added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3489] device 
added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6): no ifupdown configuration found.
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3489] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3489] device 
added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration 
found.
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3489] end 
_init.
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3489] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. (/usr/lib/
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3489] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3489] 
(-949433152) ... get_connections.
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3489] 
(-949433152) ... get_connections (managed=false): return empty list.
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3542] 
keyfile: new connection 
/run/NetworkManager/system-connections/netplan-enp0s31f6 
(0fb5685d-476e-39b6-8090-4f5b35b00deb,"netplan-
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3543] get 
unmanaged devices count: 0
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3544] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3544] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3544] 
manager: Networking is enabled by state file
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3545] 
dhcp-init: Using DHCP client 'dhclient'
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3546] Loaded 
device plugin: NMBondDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3546] Loaded 
device plugin: NMBridgeDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMDummyDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMEthernetDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMInfinibandDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMIPTunnelDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMMacsecDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMMacvlanDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMPppDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMTunDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMVethDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3547] Loaded 
device plugin: NMVlanDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3548] Loaded 
device plugin: NMVxlanDeviceFactory (internal)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3550] Loaded 
device plugin: NMAtmManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3560] Loaded 
device plugin: NMBluezManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3569] Loaded 
device plugin: NMTeamFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3572] Loaded 
device plugin: NMWifiFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3574] Loaded 
device plugin: NMWwanFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3581] device 
(lo): carrier: link connected
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3585] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3591] 
manager: (enp0s31f6): new Ethernet device 
(/org/freedesktop/NetworkManager/Devices/2)
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.3596] device 
(enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', 
sys-iface-state: 'external')
Aug 02 00:12:57 t2trvs01 NetworkManager[1408]: <info>  [1533183177.5466] 
modem-manager: ModemManager available
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4419] device 
(enp0s31f6): carrier: link connected
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4422] device 
(enp0s31f6): state change: unavailable -> disconnected (reason 
'carrier-changed', sys-iface-state: 'managed')
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4428] 
policy: auto-activating connection 'netplan-enp0s31f6'
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4434] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4436] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4437] 
manager: NetworkManager state is now CONNECTING
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4440] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4443] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4447] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.4946] dhcp4 
(enp0s31f6): dhclient started with pid 1883
Aug 02 00:13:00 t2trvs01 dhclient[1883]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x10f5c41d)
Aug 02 00:13:00 t2trvs01 dhclient[1883]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6):   lease time 259200
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5506] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5512] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5516] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5518] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5519] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 02 00:13:00 t2trvs01 dhclient[1883]: bound to 192.168.xx.xx -- renewal in 
117704 seconds.
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5569] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5570] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5571] device 
(enp0s31f6): Activation: successful, device activated.
Aug 02 00:13:00 t2trvs01 NetworkManager[1408]: <info>  [1533183180.5574] 
manager: startup complete
Aug 02 00:13:12 t2trvs01 NetworkManager[1408]: <info>  [1533183192.6450] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 02 00:14:19 t2trvs01 NetworkManager[1408]: <info>  [1533183259.6392] 
modem-manager: ModemManager no longer available
Aug 02 00:14:19 t2trvs01 NetworkManager[1408]: <warn>  [1533183259.6785] error 
requesting auth for org.freedesktop.NetworkManager.wifi.share.protected: 
Authorization check failed: Refusing activation, 
Aug 02 00:14:19 t2trvs01 NetworkManager[1408]: <warn>  [1533183259.6786] error 
requesting auth for org.freedesktop.NetworkManager.wifi.share.open: 
Authorization check failed: Refusing activation, D-Bus
Aug 02 00:14:21 t2trvs01 systemd[1]: Stopping Network Manager...
Aug 02 00:14:21 t2trvs01 NetworkManager[1408]: <info>  [1533183261.5999] caught 
SIGTERM, shutting down normally.
Aug 02 00:14:21 t2trvs01 NetworkManager[1408]: <info>  [1533183261.6545] 
exiting (success)
Aug 02 00:14:21 t2trvs01 systemd[1]: Stopped Network Manager.
-- Reboot --
Aug 02 00:14:50 t2trvs01 systemd[1]: Starting Network Manager...
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.0235] 
NetworkManager (version 1.10.6) is starting... (for the first time)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.0236] Read 
config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 
20-connectivity-ubuntu.conf, no-mac-addr-change
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.0265] 
manager[0x55f041062070]: monitoring kernel firmware directory '/lib/firmware'.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.0265] 
monitoring ifupdown state file '/run/network/ifstate'.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4372] 
hostname: hostname: using hostnamed
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4372] 
hostname: hostname changed from (none) to "t2trvs01"
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4374] 
dns-mgr[0x55f04107d940]: init: dns=systemd-resolved, rc-manager=symlink, 
plugin=systemd-resolved
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4378] 
manager[0x55f041062070]: rfkill: WiFi hardware radio set enabled
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4378] 
manager[0x55f041062070]: rfkill: WWAN hardware radio set enabled
Aug 02 00:14:50 t2trvs01 systemd[1]: Started Network Manager.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4577] init!
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4578]       
interface-parser: parsing file /etc/network/interfaces
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4578]       
interface-parser: finished parsing file /etc/network/interfaces
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4578] 
management mode: unmanaged
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4580] 
devices added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4580] device 
added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6): no ifupdown configuration found.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4580] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4581] device 
added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration 
found.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4581] end 
_init.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4581] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. (/usr/lib/
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4581] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4581] 
(1091154112) ... get_connections.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4581] 
(1091154112) ... get_connections (managed=false): return empty list.
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4635] 
keyfile: new connection 
/run/NetworkManager/system-connections/netplan-enp0s31f6 
(0fb5685d-476e-39b6-8090-4f5b35b00deb,"netplan-
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4636] get 
unmanaged devices count: 0
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4637] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4637] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4637] 
manager: Networking is enabled by state file
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4637] 
dhcp-init: Using DHCP client 'dhclient'
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMBondDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMBridgeDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMDummyDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMEthernetDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMInfinibandDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMIPTunnelDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMMacsecDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMMacvlanDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMPppDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4639] Loaded 
device plugin: NMTunDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4640] Loaded 
device plugin: NMVethDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4640] Loaded 
device plugin: NMVlanDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4640] Loaded 
device plugin: NMVxlanDeviceFactory (internal)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4641] Loaded 
device plugin: NMAtmManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4651] Loaded 
device plugin: NMBluezManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4659] Loaded 
device plugin: NMTeamFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4661] Loaded 
device plugin: NMWifiFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4662] Loaded 
device plugin: NMWwanFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4668] device 
(lo): carrier: link connected
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4671] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4676] 
manager: (enp0s31f6): new Ethernet device 
(/org/freedesktop/NetworkManager/Devices/2)
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.4681] device 
(enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', 
sys-iface-state: 'external')
Aug 02 00:14:50 t2trvs01 NetworkManager[1475]: <info>  [1533183290.6554] 
modem-manager: ModemManager available
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5550] device 
(enp0s31f6): carrier: link connected
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5554] device 
(enp0s31f6): state change: unavailable -> disconnected (reason 
'carrier-changed', sys-iface-state: 'managed')
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5559] 
policy: auto-activating connection 'netplan-enp0s31f6'
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5566] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5567] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5567] 
manager: NetworkManager state is now CONNECTING
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5569] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5573] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5577] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.5997] dhcp4 
(enp0s31f6): dhclient started with pid 1815
Aug 02 00:14:53 t2trvs01 dhclient[1815]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x61cf10c6)
Aug 02 00:14:53 t2trvs01 dhclient[1815]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6519] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6519] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6519] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6520] dhcp4 
(enp0s31f6):   lease time 259200
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6520] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6520] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6520] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6520] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6520] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6526] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6531] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6533] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6534] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 02 00:14:53 t2trvs01 dhclient[1815]: bound to 192.168.xx.xx -- renewal in 
128788 seconds.
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6586] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6586] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6588] device 
(enp0s31f6): Activation: successful, device activated.
Aug 02 00:14:53 t2trvs01 NetworkManager[1475]: <info>  [1533183293.6591] 
manager: startup complete
Aug 02 00:15:05 t2trvs01 NetworkManager[1475]: <info>  [1533183305.7500] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 02 00:15:25 t2trvs01 NetworkManager[1475]: <info>  [1533183325.9083] 
modem-manager: ModemManager no longer available
Aug 02 00:15:28 t2trvs01 systemd[1]: Stopping Network Manager...
Aug 02 00:15:28 t2trvs01 NetworkManager[1475]: <info>  [1533183328.7983] caught 
SIGTERM, shutting down normally.
Aug 02 00:15:28 t2trvs01 NetworkManager[1475]: <info>  [1533183328.8265] 
exiting (success)
Aug 02 00:15:28 t2trvs01 systemd[1]: Stopped Network Manager.
-- Reboot --
Aug 02 00:15:54 t2trvs01 systemd[1]: Starting Network Manager...
Aug 02 00:15:54 t2trvs01 NetworkManager[1564]: <info>  [1533183354.9957] 
NetworkManager (version 1.10.6) is starting... (for the first time)
Aug 02 00:15:54 t2trvs01 NetworkManager[1564]: <info>  [1533183354.9958] Read 
config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 
20-connectivity-ubuntu.conf, no-mac-addr-change
Aug 02 00:15:54 t2trvs01 NetworkManager[1564]: <info>  [1533183354.9983] 
manager[0x563f4ae32070]: monitoring kernel firmware directory '/lib/firmware'.
Aug 02 00:15:54 t2trvs01 NetworkManager[1564]: <info>  [1533183354.9983] 
monitoring ifupdown state file '/run/network/ifstate'.
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4110] 
hostname: hostname: using hostnamed
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4110] 
hostname: hostname changed from (none) to "t2trvs01"
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4112] 
dns-mgr[0x563f4ae4e970]: init: dns=systemd-resolved, rc-manager=symlink, 
plugin=systemd-resolved
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4116] 
manager[0x563f4ae32070]: rfkill: WiFi hardware radio set enabled
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4116] 
manager[0x563f4ae32070]: rfkill: WWAN hardware radio set enabled
Aug 02 00:15:55 t2trvs01 systemd[1]: Started Network Manager.
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4312] init!
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4313]       
interface-parser: parsing file /etc/network/interfaces
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4314]       
interface-parser: finished parsing file /etc/network/interfaces
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4314] 
management mode: unmanaged
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] 
devices added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] device 
added (path: /sys/devices/pci0000:00/0000:00:1f.6/net/enp0s31f6, iface: 
enp0s31f6): no ifupdown configuration found.
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] device 
added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration 
found.
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] end 
_init.
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. (/usr/lib/
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] 
(1256639680) ... get_connections.
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4316] 
(1256639680) ... get_connections (managed=false): return empty list.
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4372] 
keyfile: new connection 
/run/NetworkManager/system-connections/netplan-enp0s31f6 
(0fb5685d-476e-39b6-8090-4f5b35b00deb,"netplan-
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4373] get 
unmanaged devices count: 0
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4373] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4374] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4374] 
manager: Networking is enabled by state file
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4374] 
dhcp-init: Using DHCP client 'dhclient'
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMBondDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMBridgeDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMDummyDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMEthernetDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMInfinibandDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMIPTunnelDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMMacsecDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMMacvlanDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMPppDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4376] Loaded 
device plugin: NMTunDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4377] Loaded 
device plugin: NMVethDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4377] Loaded 
device plugin: NMVlanDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4377] Loaded 
device plugin: NMVxlanDeviceFactory (internal)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4379] Loaded 
device plugin: NMAtmManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4388] Loaded 
device plugin: NMBluezManager 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4397] Loaded 
device plugin: NMTeamFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4399] Loaded 
device plugin: NMWifiFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4400] Loaded 
device plugin: NMWwanFactory 
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4406] device 
(lo): carrier: link connected
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4409] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4415] 
manager: (enp0s31f6): new Ethernet device 
(/org/freedesktop/NetworkManager/Devices/2)
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.4421] device 
(enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', 
sys-iface-state: 'external')
Aug 02 00:15:55 t2trvs01 NetworkManager[1564]: <info>  [1533183355.6297] 
modem-manager: ModemManager available
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5210] device 
(enp0s31f6): carrier: link connected
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5213] device 
(enp0s31f6): state change: unavailable -> disconnected (reason 
'carrier-changed', sys-iface-state: 'managed')
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5219] 
policy: auto-activating connection 'netplan-enp0s31f6'
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5226] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5227] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5228] 
manager: NetworkManager state is now CONNECTING
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5231] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5235] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5239] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5576] dhcp4 
(enp0s31f6): dhclient started with pid 1902
Aug 02 00:15:58 t2trvs01 dhclient[1902]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x1e1b761b)
Aug 02 00:15:58 t2trvs01 dhclient[1902]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6):   lease time 259200
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5936] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5943] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5947] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5948] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.5949] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 02 00:15:58 t2trvs01 dhclient[1902]: bound to 192.168.xx.xx -- renewal in 
109702 seconds.
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.6030] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.6030] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.6032] device 
(enp0s31f6): Activation: successful, device activated.
Aug 02 00:15:58 t2trvs01 NetworkManager[1564]: <info>  [1533183358.6035] 
manager: startup complete
Aug 02 00:16:04 t2trvs01 NetworkManager[1564]: <info>  [1533183364.6970] 
manager: NetworkManager state is now CONNECTED_GLOBAL
Aug 02 21:40:56 t2trvs01 NetworkManager[1564]: <info>  [1533260456.8047] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 02 21:42:29 t2trvs01 NetworkManager[1564]: <info>  [1533260549.5400] device 
(enp0s31f6): state change: activated -> deactivating (reason 'user-requested', 
sys-iface-state: 'managed')
Aug 02 21:42:29 t2trvs01 NetworkManager[1564]: <info>  [1533260549.5404] 
manager: NetworkManager state is now DISCONNECTING
Aug 02 21:42:29 t2trvs01 NetworkManager[1564]: <info>  [1533260549.5959] audit: 
op="device-disconnect" interface="enp0s31f6" ifindex=2 pid=2804 uid=1000 
result="success"
Aug 02 21:42:29 t2trvs01 NetworkManager[1564]: <info>  [1533260549.5964] device 
(enp0s31f6): state change: deactivating -> disconnected (reason 
'user-requested', sys-iface-state: 'managed')
Aug 02 21:42:29 t2trvs01 NetworkManager[1564]: <info>  [1533260549.6290] dhcp4 
(enp0s31f6): canceled DHCP transaction, DHCP client pid 1902
Aug 02 21:42:29 t2trvs01 NetworkManager[1564]: <info>  [1533260549.6290] dhcp4 
(enp0s31f6): state changed bound -> done
Aug 02 21:42:29 t2trvs01 NetworkManager[1564]: <info>  [1533260549.6302] 
manager: NetworkManager state is now DISCONNECTED
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8375] device 
(enp0s31f6): Activation: starting connection 'netplan-enp0s31f6' 
(0fb5685d-476e-39b6-8090-4f5b35b00deb)
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8378] audit: 
op="connection-activate" uuid="0fb5685d-476e-39b6-8090-4f5b35b00deb" 
name="netplan-enp0s31f6" pid=2804 uid=1000 result="s
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8383] device 
(enp0s31f6): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8387] 
manager: NetworkManager state is now CONNECTING
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8394] device 
(enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 
'managed')
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8409] device 
(enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 
'managed')
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8416] dhcp4 
(enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8432] dhcp4 
(enp0s31f6): dhclient started with pid 21688
Aug 02 21:42:33 t2trvs01 dhclient[21688]: DHCPREQUEST of 192.168.xx.xx on 
enp0s31f6 to 255.255.255.255 port 67 (xid=0x209981bb)
Aug 02 21:42:33 t2trvs01 dhclient[21688]: DHCPACK of 192.168.xx.xx from 
192.168.xx.xx
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6):   address 192.168.10.46
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6):   plen 24 (255.255.255.0)
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6):   gateway 192.168.10.1
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6):   lease time 259200
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6):   nameserver '192.168.10.1'
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6):   nameserver '8.8.8.8'
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6):   nameserver '142.4.204.111'
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6):   nameserver '162.248.241.94'
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8755] dhcp4 
(enp0s31f6): state changed unknown -> bound
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8764] device 
(enp0s31f6): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8769] device 
(enp0s31f6): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8770] device 
(enp0s31f6): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.8771] 
manager: NetworkManager state is now CONNECTED_LOCAL
Aug 02 21:42:33 t2trvs01 dhclient[21688]: bound to 192.168.xx.xx -- renewal in 
103749 seconds.
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.9473] 
manager: NetworkManager state is now CONNECTED_SITE
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.9474] 
policy: set 'netplan-enp0s31f6' (enp0s31f6) as default for IPv4 routing and DNS
Aug 02 21:42:33 t2trvs01 NetworkManager[1564]: <info>  [1533260553.9475] device 
(enp0s31f6): Activation: successful, device activated.
Aug 02 21:42:46 t2trvs01 NetworkManager[1564]: <info>  [1533260566.0392] 
manager: NetworkManager state is now CONNECTED_GLOBAL

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https://bugs.launchpad.net/bugs/1785171

Title:
  Intel I219-V Ethernet Interface on Ubuntu Linux Using e1000e Driver
  keeps Dropping Internet Connection

Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Bionic:
  Incomplete

Bug description:
  I've turned up many, many new server and workstation systems over the
  years on both Linux and Windows. Never seen anything like this
  behaviour I'm witnessing on Ubuntu Server 18.04 before where I simply
  lose Internet connectivity while using a browser.  Ethernet interfaces
  usually either work or they don't work.

  I've configured the Intel I219-V Ethernet interface (wired Ethernet
  connection, there is no wifi on this system) using the e1000e driver
  for Ubuntu.  The Ethernet connection is configured to use
  NetworkManager via Netplan on Ubuntu 18.04 LTS Server version.  ASRock
  Z370m Pro4 motherboard.

  The Ethernet interface will drop the Internet connectivity when I'm
  using either the Firefox or Chrome browser.  It usually happens when
  I'm using the search features of the browser. I can't figure out what
  would cause this type of behaviour.  When the Internet connection
  drops, the only way to get back Internet connectivity is to disconnect
  the wired connection using the Ubuntu features and then re-connect
  (this restarts the NetworkManager service I notice).

  In the NetworkManager logs I do notice an "auth" error about a file or
  directory not found. I've never seen that before.

  Note:  The auth error does not coincide with the loss of Internet
  connectivity, but it does proceed it.  Often there can be many hours
  between the auth error and the actual loss of Internet connectivity.

  After I reconnect the connection (via re-starting the NetworkManager
  service) all will be fine for up to a day or so, but then I stress
  test it with a bunch of searches using the browser and usually I can
  get the Internet connectivity to drop again.  Repeat the disconnect
  and reconnect process again (aka re-start NetworkManager) and the
  Internet connectivity will be fine again.  The longest I've seen it go
  without an "Internet connectivity drop" issue is about 36 hours.

  I notice that the e1000e driver does not list the I219-V as a
  supported Ethernet interface in the Intel documentation for the Linux
  version of the driver.  I'm not sure why that is.  The I219-V is
  supposed to used another driver, but it's not clear there's a Linux
  version for of the driver for the I219-V.

  I'm really disappointed that I've run into this issue with Ubuntu
  Server LTS 18.04 on this motherboard.  I had CentOS Server 7.4 (my
  standard server OS, a great Linux distro) on this same motherboard for
  a week with no issues, so I know the motherboard and the I219-V
  Ethernet interface are 100% good hardware wise and can work properly.
  CentOS 7.4 uses NetworkManager as the default for managing the
  Ethernet interface.

  The only reason I'm using Ubuntu Server 18.04 on this motherboard is
  because of a specific package that Ubuntu has a newer packaged version
  than CentOS. CentOS is extremely stable when it comes to basic server
  functionality.

  Hopefully, this bug with the I219-V Ethernet interface using the
  e1000e drive for Linux can be verified and a fix rolled out.

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