Public bug reported:
Description: A few times an hour the networking drops for around 20
seconds. It then automatically reconnects. The only clearly related
message in journalctl is the DHCPREQUEST / DCHPACK followed the
messages:
Starting Network Manager Script Dispatcher Service...
bound to X.X.X.X -- renewal in 1692 seconds.
[system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Started Network Manager Script Dispatcher Service.
req:1 'dhcp4-change' [wlp2s0]: new request (1 scripts)
req:1 'dhcp4-change' [wlp2s0]: start running ordered scripts...
That makes me think that Network Manager silently died and was
restarted.
Notes:
* The system is a new Dell Precision 5520 with a Qualcomm Atheros QCA6174
802.11ac Wireless Network Adapter (rev 32)
* This system started as a clean install of Ubuntu 18.04 Beta on March 31, 2018
* The wireless networking was stable from install until a system update on
April 27, 2018
* The wired networking is completely stable.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: network-manager 1.10.6-2ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu May 3 10:36:25 2018
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2018-03-31 (32 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180331)
IpRoute:
default via 10.4.0.1 dev wlp2s0 proto dhcp metric 600
10.4.0.0/20 dev wlp2s0 proto kernel scope link src 10.4.3.151 metric 600
169.254.0.0/16 dev wlp2s0 scope link metric 1000
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=false
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
CONNECTION CON-UUID CON-PATH
wlp2s0 wifi connected
/org/freedesktop/NetworkManager/Devices/3 Evernym
c5f3aef0-8286-4268-a8e4-7b7272491d34
/org/freedesktop/NetworkManager/ActiveConnection/1
enx1065308d9647 ethernet unavailable
/org/freedesktop/NetworkManager/Devices/2 -- --
--
lo loopback unmanaged
/org/freedesktop/NetworkManager/Devices/1 -- --
--
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI
WWAN-HW WWAN
running 1.10.6 connected started full enabled enabled
enabled enabled disabled
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1768912
Title:
Wifi connection drops regularly
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