Wireless network frequently drops in 17.10

Bug #1710382 reported by Alan Pope 🍺🐧🐱 πŸ¦„ on 2017-08-12
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
network-manager (Ubuntu)
Undecided
Unassigned

Bug Description

On a fairly clean 17.10 install, on a Thinkpad T450, the wireless connection keeps dropping. Other devices nearby do not suffer the same way.

I can turn the wifi off and on again to get reconnected. It happens multiple times over a short period of an hour or so. So quite irritating.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: network-manager 1.8.2-1ubuntu2
ProcVersionSignature: Ubuntu 4.11.0-13.19-generic 4.11.12
Uname: Linux 4.11.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.20.6-0ubuntu4
Architecture: amd64
CurrentDesktop: GNOME
Date: Sat Aug 12 15:52:20 2017
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2017-08-02 (9 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170712)
IpRoute:
 default via 192.168.1.1 dev wlp3s0 proto static metric 600
 10.124.121.0/24 dev lxdbr0 proto kernel scope link src 10.124.121.1
 169.254.0.0/16 dev wlp3s0 scope link metric 1000
 192.168.1.0/24 dev wlp3s0 proto kernel scope link src 192.168.1.95 metric 600
NetworkManager.conf:
 [main]
 plugins=ifupdown,keyfile

 [ifupdown]
 managed=false
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 lxdbr0 bridge connected /org/freedesktop/NetworkManager/Devices/27 lxdbr0 9e57f30a-21b5-4f87-aa76-06a328c24462 /org/freedesktop/NetworkManager/ActiveConnection/10
 wlp3s0 wifi connected /org/freedesktop/NetworkManager/Devices/3 popey b83cf629-38b9-47dc-8916-3aaa2868e90a /org/freedesktop/NetworkManager/ActiveConnection/6
 enp0s25 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 1.8.2 connected started full enabled enabled enabled enabled enabled

Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in network-manager (Ubuntu):
status: New → Confirmed
fcole90 (fcole90) wrote :

Can you check bug 1736690 to see if it's the same bug as this?

Pete (lance321) wrote :

I am also having the same problem w/ 17.10.

Maybe be a duplicate of bug 1726187 and 1736690.

I am also having issues with my WiFi connection dropping out, freezing, etc.

I see other bugs reported as well for 17.10 / 18.04 Ubunutu.

I am using latest 17.10 build, clean install.
Laptop: Yoga 11e
Kernel: 4.13.0-21-generic
WiFi: Network controller: Intel Corporation Wireless 7265 (rev 61)

Occasionally it works when connecting, then stops.

What I find most peculiar is that I discovered the DNS appears to intermittently stop 'while' I am using the computer online.

If I manually edit "/etc/resolv.conf" (which you shouldn't have to do), and change "nameserver 127.0.0.53" to "nameserver 8.8.8.8".

Then save, everything works fine and is stable until the next reboot!

I don't think this is a driver/kernel issue, its almost like resolv.conf is broken.

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