After 17.04 -> 17.10 upgrade, wifi often freezes

Bug #1726187 reported by Yuri Astrakhan on 2017-10-23
This bug affects 1 person
Affects Status Importance Assigned to Milestone
network-manager (Ubuntu)

Bug Description

(might be incorrect package)

About once every few hours, my wifi locks up until I use "turn off + turn on" in the network control - upper right corner drop down. This has started happening after the upgrade from 17.04 to 17.10. The wireless signal is very strong, and it remains strong even after lock up.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: network-manager 1.8.4-1ubuntu3
ProcVersionSignature: Ubuntu 4.13.0-16.19-lowlatency 4.13.4
Uname: Linux 4.13.0-16-lowlatency x86_64
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Oct 22 20:41:31 2017
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2017-04-13 (192 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
 default via dev wlp58s0 proto static metric 600 dev wlp58s0 scope link metric 1000 dev docker0 proto kernel scope link src linkdown dev wlp58s0 proto kernel scope link src metric 600
 PATH=(custom, no user)
SourcePackage: network-manager
UpgradeStatus: Upgraded to artful on 2017-10-19 (3 days ago)
 docker0 bridge connected /org/freedesktop/NetworkManager/Devices/3 docker0 c1be4834-7fc1-4167-8509-90e5d1946c14 /org/freedesktop/NetworkManager/ActiveConnection/2
 wlp58s0 wifi connected /org/freedesktop/NetworkManager/Devices/2 pups 4bf35394-3e64-4dbe-b1b2-5d1953df7058 /org/freedesktop/NetworkManager/ActiveConnection/14
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- --
 running 1.8.4 connected started full enabled enabled enabled enabled enabled

Yuri Astrakhan (yuriastrakhan) wrote :
Yuri Astrakhan (yuriastrakhan) wrote :

Correction: the wifi icon turns to question mark in the upper right corner, even though ifconfig and wifi connection selection still shows the connection as active. The wifi off/on quickly fixes the issue.

Sebastien Bacher (seb128) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.

Changed in network-manager (Ubuntu):
importance: Undecided → High
Yuri Astrakhan (yuriastrakhan) wrote :

@seb128, why do you think its part of GNOME? I would have thought it happens on the networking level, not UI?

Sebastien Bacher (seb128) wrote :

could be, your reported it against network-manager though so I was suggesting to report it upstream which is a better place to discuss issues in their project

Yuri Astrakhan (yuriastrakhan) wrote :

@seb123 true, I wasn't sure which package to report it against. I couldn't find the proper instructions to report kernel?-level issues.

Pete (lance321) wrote :

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.

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

Once saved 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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