I've been working for the past week or so with a version built around 4th July. 
I've just updated to the latest, and seem to be getting a seg fault somewhere.
(/usr/libexec/nm-dispatcher is running afterwards)
I fairly sure nothing else in the system is different.

Compared with below, the log of the working version next does:
daemon.debug NetworkManager[916]: <debug> [1499691331.7316] device[0x16cc4c0] 
(eth0): ip6-config: update (commit=0, routes-full-sync=0, new-config=0x16da148)
daemon.debug NetworkManager[916]: <debug> [1499691331.7375] device[0x16cc4c0] 
(eth0): ip6-config: set IP6Config instance 
(/org/freedesktop/NetworkManager/IP6Config/1)
daemon.debug NetworkManager[916]: <debug> [1499691331.7381] dns-mgr: 
(device_ip6_config_changed): queueing DNS updates (1)
daemon.debug NetworkManager[916]: <debug> [1499691331.7384] dns-mgr: 
(device_ip6_config_changed): DNS configuration did not change
daemon.debug NetworkManager[916]: <debug> [1499691331.7386] dns-mgr: 
(device_ip6_config_changed): no DNS changes to commit (0)
daemon.debug NetworkManager[916]: <debug> [1499691331.7388] device[0x16cc4c0] 
(eth0): device has no existing configuration

[The system doesn't have IPv6]

Log is below; any immediate thoughts....?
Thanks

Jul 10 14:02:15 wg daemon.info NetworkManager[900]: <info>  [1499691735.9555] 
NetworkManager (version 1.9.1) is starting... (for the first time)
Jul 10 14:02:15 wg daemon.info NetworkManager[900]: <info>  [1499691735.9563] 
Read config: /etc/NetworkManager/NetworkManager.conf
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9569] 
CONFIG: config-data[0x4531c8]: 2 groups
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9571] 
CONFIG: 
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9573] 
CONFIG: [main]
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9575] 
CONFIG:   plugins=ifupdown,keyfile
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9577] 
CONFIG:   dns=default
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9579] 
CONFIG:   rc-manager=file
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9580] 
CONFIG: 
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9582] 
CONFIG: [ifupdown]
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9587] 
CONFIG:   managed=true
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9591] 
config: state: missing state file 
"/var/lib/NetworkManager/NetworkManager.state": No such file or directory
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9593] 
WEXT support is disabled
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9736] 
platform-linux: create (ignore netns, initial netns, use udev)
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9744] 
platform-linux: Netlink socket for events established: port=1476395908, fd=8
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9747] 
platform-linux: populate platform cache
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9757] 
monotonic timestamp started counting 1.343174014 seconds ago with an offset of 
136.0 seconds to CLOCK_BOOTTIME (local time is 2017-07-10 14:02:15)
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9775] 
platform: signal: link   added: 1: lo <DOWN;loopback> mtu 65536 arp 772 
loopback? not-init addr 00:00:00:00:00:00 driver unknown rx:0,0 tx:0,0
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9789] 
platform: signal: link   added: 2: eth0 <DOWN;broadcast,multicast> mtu 1500 arp 
1 ethernet? not-init addr 00:0C:C6:7F:E5:50 driver fec rx:0,0 tx:0,0
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9832] 
platform: signal: link changed: 2: eth0 <DOWN;broadcast,multicast> mtu 1500 arp 
1 ethernet? init addr 00:0C:C6:7F:E5:50 driver fec rx:0,0 tx:0,0
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9844] 
platform: signal: link changed: 1: lo <DOWN;loopback> mtu 65536 arp 772 
loopback? init addr 00:00:00:00:00:00 driver unknown rx:0,0 tx:0,0
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9848] 
setup NMPlatform singleton (0x455428, NMLinuxPlatform)
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9859] 
create NMNetns singleton (0x44c200)
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9864] 
auth[0x451390]: create auth-manager: polkit disabled at compile time
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9866] 
auth[0x451390]: set instance
Jul 10 14:02:15 wg daemon.debug NetworkManager[900]: <debug> [1499691735.9868] 
setup NMAuthManager singleton (0x451390)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.0128] 
bus-manager: setup NMBusManager singleton (0x44fa50)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.0437] 
manager[0x460030]: monitoring kernel firmware directory '/lib/firmware'.
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.0656] 
session-monitor: using ConsoleKit session tracking
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.0659] 
create NMSessionMonitor singleton (0x46a900)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.0688] 
create NMAgentManager singleton (0x469830)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.0882] 
hostname: hostname: couldn't get property from hostnamed
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.0950] 
hostname: hostname changed from (none) to "wg"
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.0972] 
create NMHostnameManager singleton (0x470800)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.0985] 
create NMFirewallManager singleton (0x44c140)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.1001] 
dns-mgr[0x4572c8]: init: dns=default, rc-manager=file
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.1043] 
create NMDnsManager singleton (0x4572c8)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.1050] 
policy: hostname-mode: full
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.1065] 
manager: setup NMManager singleton (0x460030)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.1242] 
create NMConnectivity singleton (0x478450)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.1336] 
dispatcher: default script directory '/etc/NetworkManager/dispatcher.d' has 
scripts
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.1347] 
dispatcher: pre-up script directory '/etc/NetworkManager/dispatcher.d/pre-up.d' 
has no scripts
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.1357] 
dispatcher: pre-down script directory 
'/etc/NetworkManager/dispatcher.d/pre-down.d' has no scripts
Jul 10 14:02:16 wg daemon.notice dbus[807]: [system] Activating service 
name='org.freedesktop.nm_dispatcher' (using servicehelper)
Jul 10 14:02:16 wg daemon.notice dbus[807]: [system] Successfully activated 
service 'org.freedesktop.nm_dispatcher'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.3332] 
create SettingsPluginIfupdown singleton (0x44c320)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3336] 
init!
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3342]   
    interface-parser: parsing file /etc/network/interfaces
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3345]   
    interface-parser: finished parsing file /etc/network/interfaces
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3348] 
management mode: managed
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3358] 
devices added (path: 
/sys/devices/soc0/soc/2100000.aips-bus/2188000.ethernet/net/eth0, iface: eth0)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3361] 
device added (path: 
/sys/devices/soc0/soc/2100000.aips-bus/2188000.ethernet/net/eth0, iface: eth0): 
no ifupdown configuration found.
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3363] 
devices added (path: /sys/devices/virtual/net/lo, iface: lo)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3365] 
device added (path: /sys/devices/virtual/net/lo, iface: lo): no ifupdown 
configuration found.
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3367] 
end _init.
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3370] 
settings: loaded plugin ifupdown: (C) 2008 Canonical Ltd.  To report bugs 
please use the NetworkManager mailing list. 
(/usr/lib/NetworkManager/libnm-settings-plugin-ifupdown.so)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3376] 
settings: loaded plugin keyfile: (c) 2007 - 2016 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3379] 
(4506400) ... get_connections.
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.3381] 
(4506400) connections count: 0
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.3393] 
keyfile: loading from file "/etc/NetworkManager/system-connections/GSM"...
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5119] 
settings-connection[0x75102db8]: constructed (NMSKeyfileConnection)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5158] 
settings-connection[0x75102db8,4259ac07-9d07-45f6-3f08-37d69ba7a537]: replace 
settings from connection 0x472520 (GSM)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5213] 
keyfile: new connection /etc/NetworkManager/system-connections/GSM 
(4259ac07-9d07-45f6-3f08-37d69ba7a537,"GSM")
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5219] 
settings-connection[0x75102db8,4259ac07-9d07-45f6-3f08-37d69ba7a537]: failed to 
read connection timestamp: No such file or directory
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5275] 
++ connection 'new connection' (0x75102db8/NMSKeyfileConnection/"gsm"): 
[/org/freedesktop/NetworkManager/Settings/1]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5279] 
++ connection                [ 0x48dce8 ]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5281] 
++ connection.autoconnect    = FALSE
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5284] 
++ connection.id             = 'GSM'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5287] 
++ connection.permissions    = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5289] 
++ connection.type           = 'gsm'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5292] 
++ connection.uuid           = '4259ac07-9d07-45f6-3f08-37d69ba7a537'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5295] 
++ gsm                       [ 0x48f2c8 ]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5297] 
++ gsm.apn                   = '_APN_'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5302] 
++ ipv4                      [ 0x44f338 ]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5304] 
++ ipv4.addresses            = ((GPtrArray*) 0x47a5a8)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5307] 
++ ipv4.dns                  = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5310] 
++ ipv4.dns-search           = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5312] 
++ ipv4.method               = 'auto'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5315] 
++ ipv4.routes               = ((GPtrArray*) 0x47a590)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5320] 
++ ipv6                      [ 0x4555e8 ]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5322] 
++ ipv6.addr-gen-mode        = 0
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5326] 
++ ipv6.addresses            = ((GPtrArray*) 0x46fa80)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5329] 
++ ipv6.dns                  = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5331] 
++ ipv6.dns-search           = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5334] 
++ ipv6.method               = 'ignore'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5337] 
++ ipv6.routes               = ((GPtrArray*) 0x46f778)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5348] 
manager: rfkill: WiFi enabled by radio killswitch; enabled by state file
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5352] 
manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5356] 
manager: Networking is enabled by state file
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5358] 
dispatcher: (1) dispatching action 'hostname'
Jul 10 14:02:16 wg daemon.info nm-dispatcher: req:1 'hostname': new request (1 
scripts)
Jul 10 14:02:16 wg daemon.info nm-dispatcher: req:1 'hostname': start running 
ordered scripts...
Jul 10 14:02:16 wg daemon.debug nm-dispatcher: req:1 'hostname', 
"/etc/NetworkManager/dispatcher.d/ppp-vnstat": run script
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5446] 
dhcp-init: enabled DHCP client 'dhclient' (NMDhcpDhclient)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5449] 
dhcp-init: enabled DHCP client 'internal' (NMDhcpSystemd)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5452] 
dhcp-init: Using DHCP client 'dhclient'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.5454] 
create NMDhcpManager singleton (0x476778)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5626] 
Loaded device plugin: NMBondDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5629] 
Loaded device plugin: NMBridgeDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5631] 
Loaded device plugin: NMDummyDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5634] 
Loaded device plugin: NMEthernetDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5636] 
Loaded device plugin: NMInfinibandDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5689] 
Loaded device plugin: NMIPTunnelDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5692] 
Loaded device plugin: NMMacsecDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5694] 
Loaded device plugin: NMMacvlanDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5696] 
Loaded device plugin: NMTunDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5698] 
Loaded device plugin: NMVethDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5701] 
Loaded device plugin: NMVlanDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.5703] 
Loaded device plugin: NMVxlanDeviceFactory (internal)
Jul 10 14:02:16 wg daemon.debug nm-dispatcher: req:1 'hostname', 
"/etc/NetworkManager/dispatcher.d/ppp-vnstat": complete
Jul 10 14:02:16 wg daemon.debug nm-dispatcher: req:1 'hostname': completed (1 
scripts)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.6076] 
Loaded device plugin: NMBluezManager 
(/usr/lib/NetworkManager/libnm-device-plugin-bluetooth.so)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.6142] 
Loaded device plugin: NMWwanFactory 
(/usr/lib/NetworkManager/libnm-device-plugin-wwan.so)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6157] 
create NMModemManager singleton (0x478910)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6299] 
device[0x4a0430] (lo): unmanaged: flags set to 
[platform-init,by-default=0x110/0x110/unmanaged/unrealized], set-unmanaged 
[by-default=0x100])
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6307] 
device[0x4a0430] (lo): constructed (NMDeviceGeneric)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6312] 
device[0x4a0430] (lo): start setup of NMDeviceGeneric, kernel ifindex 1
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6314] 
device[0x4a0430] (lo): assume-state: set guess-assume=1, connection=(null)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6322] 
platform-linux: error reading net:/sys/class/net/lo/phys_port_id: error reading 
4096 bytes from file descriptor: Operation not supported
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6329] 
platform-linux: sysctl: reading 'net:/sys/class/net/lo/dev_id': '0x0'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6334] 
platform-linux: kernel-support: IFLA_INET6_ADDR_GEN_MODE: failed to detect; 
assume no support
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6338] 
platform-linux: error reading net:/sys/class/net/lo/device/sriov_totalvfs: 
Failed to open file "device/sriov_totalvfs" with openat: No such file or 
directory
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6342] 
device[0x4a0430] (lo): hw-addr: hardware address now 00:00:00:00:00:00
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6344] 
device[0x4a0430] (lo): hw-addr: update initial MAC address 00:00:00:00:00:00
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6349] 
device[0x4a0430] (lo): hw-addr: unable to read permanent MAC address (use 
current: 00:00:00:00:00:00)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6353] 
device[0x4a0430] (lo): unmanaged: flags set to 
[platform-init,by-default,external-down=0x910/0x910/unmanaged/unrealized], 
set-unmanaged [external-down=0x800])
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6355] 
device[0x4a0430] (lo): unmanaged: flags set to 
[loopback,platform-init,by-default,external-down=0x918/0x918/unmanaged/unrealized],
 set-unmanaged [loopback=0x8])
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6358] 
device[0x4a0430] (lo): unmanaged: flags set to 
[loopback,platform-init,by-default,external-down,!user-settings=0x918/0x958/unmanaged/unrealized],
 set-managed [user-settings=0x40])
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6361] 
device[0x4a0430] (lo): unmanaged: flags set to 
[loopback,by-default,external-down,!platform-init,!user-settings=0x908/0x958/unmanaged/unrealized],
 set-managed [platform-init=0x10])
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6365] 
device[0x4a0430] (lo): unmanaged: flags set to 
[loopback,by-default,external-down,!sleeping,!platform-init,!user-settings=0x908/0x959/unmanaged/unrealized],
 set-managed [sleeping=0x1])
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.6502] 
manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6552] 
device[0x4a0430] (lo): assume-state: set guess-assume=0, connection=(null)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6573] 
device[0x4a83c8] (eth0): constructed (NMDeviceEthernet)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6578] 
device[0x4a83c8] (eth0): start setup of NMDeviceEthernet, kernel ifindex 2
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6581] 
device[0x4a83c8] (eth0): assume-state: set guess-assume=1, connection=(null)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6587] 
platform-linux: error reading net:/sys/class/net/eth0/phys_port_id: error 
reading 4096 bytes from file descriptor: Operation not supported
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6593] 
platform-linux: sysctl: reading 'net:/sys/class/net/eth0/dev_id': '0x0'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6600] 
platform-linux: error reading net:/sys/class/net/eth0/device/sriov_totalvfs: 
Failed to open file "device/sriov_totalvfs" with openat: No such file or 
directory
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6604] 
device[0x4a83c8] (eth0): hw-addr: hardware address now 00:0C:C6:7F:E5:50
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6607] 
device[0x4a83c8] (eth0): hw-addr: update initial MAC address 00:0C:C6:7F:E5:50
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6610] 
device[0x4a83c8] (eth0): hw-addr: read permanent MAC address '00:0C:C6:7F:E5:50'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6618] 
device[0x4a83c8] (eth0): unmanaged: flags set to 
[platform-init,!loopback=0x10/0x18/unmanaged/unrealized], set-managed 
[loopback=0x8])
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6621] 
device[0x4a83c8] (eth0): unmanaged: flags set to 
[platform-init,!loopback,!user-settings=0x10/0x58/unmanaged/unrealized], 
set-managed [user-settings=0x40])
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6624] 
device[0x4a83c8] (eth0): unmanaged: flags set to 
[!loopback,!platform-init,!user-settings=0x0/0x58/managed/unrealized], 
set-managed [platform-init=0x10])
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6630] 
device[0x4a83c8] (eth0): unmanaged: flags set to 
[!sleeping,!loopback,!platform-init,!user-settings=0x0/0x59/managed/unrealized],
 set-managed [sleeping=0x1])
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.6775] 
manager: (eth0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6826] 
settings: Failed to add 5c9ae813-a8ad-39c2-ab1c-0d80d7ef472f/'Wired connection 
1': Plugin does not support adding connections
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6831] 
settings-connection[0x48bac0]: constructed (NMSKeyfileConnection)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6878] 
settings-connection[0x48bac0,5c9ae813-a8ad-39c2-ab1c-0d80d7ef472f]: replace 
settings from connection 0x472660 (Wired connection 1)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.6927] 
keyfile: add connection in-memory (5c9ae813-a8ad-39c2-ab1c-0d80d7ef472f,"Wired 
connection 1")
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6933] 
settings-connection[0x48bac0,5c9ae813-a8ad-39c2-ab1c-0d80d7ef472f]: failed to 
read connection timestamp: No such file or directory
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6985] 
++ connection 'new connection' 
(0x48bac0/NMSKeyfileConnection/"802-3-ethernet"): 
[/org/freedesktop/NetworkManager/Settings/2]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6989] 
++ connection                [ 0x48de20 ]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6991] 
++ connection.autoconnect-priority = -999
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6994] 
++ connection.id             = 'Wired connection 1'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6996] 
++ connection.permissions    = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.6999] 
++ connection.timestamp      = 1499691736
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7002] 
++ connection.type           = '802-3-ethernet'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7005] 
++ connection.uuid           = '5c9ae813-a8ad-39c2-ab1c-0d80d7ef472f'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7010] 
++ 802-3-ethernet            [ 0x49da80 ]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7012] 
++ 802-3-ethernet.mac-address = '00:0C:C6:7F:E5:50'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7015] 
++ 802-3-ethernet.mac-address-blacklist = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7018] 
++ 802-3-ethernet.s390-options = ((GHashTable*) 0x4ad598)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7021] 
++ ipv4                      [ 0x44f510 ]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7023] 
++ ipv4.addresses            = ((GPtrArray*) 0x46fa80)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7026] 
++ ipv4.dns                  = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7029] 
++ ipv4.dns-search           = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7032] 
++ ipv4.method               = 'auto'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7034] 
++ ipv4.routes               = ((GPtrArray*) 0x47a7a8)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7037] 
++ ipv6                      [ 0x455750 ]
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7039] 
++ ipv6.addresses            = ((GPtrArray*) 0x47a5c0)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7042] 
++ ipv6.dns                  = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7044] 
++ ipv6.dns-search           = []
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7047] 
++ ipv6.method               = 'auto'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7049] 
++ ipv6.routes               = ((GPtrArray*) 0x47a638)
Jul 10 14:02:16 wg daemon.info NetworkManager[900]: <info>  [1499691736.7090] 
settings: (eth0): created default wired connection 'Wired connection 1'
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7133] 
device[0x4a83c8] (eth0): ip4-config: update (commit=0, routes-full-sync=0, 
new-config=0x457418)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7195] 
device[0x4a83c8] (eth0): ip4-config: set IP4Config instance 
(/org/freedesktop/NetworkManager/IP4Config/1)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7201] 
dns-mgr: (device_ip4_config_changed): queueing DNS updates (1)
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7204] 
dns-mgr: (device_ip4_config_changed): DNS configuration did not change
Jul 10 14:02:16 wg daemon.debug NetworkManager[900]: <debug> [1499691736.7206] 
dns-mgr: (device_ip4_config_changed): no DNS changes to commit (0)
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