network connection fails to re-establish on resume from suspend

[Jean-Baptiste Lallement]

The network connection doesn't reestablish on resume from suspend and the laptop has to be restarted.

Restarting networking or network-manager doesn't make it reconnect either.

However, unloading iwlwifi and reloading it, then restarting the network stack makes it work again.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: network-manager 1.20.4-2ubuntu2
ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
Uname: Linux 5.3.0-18-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 22 09:28:30 2019
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2013-09-03 (2239 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902)
ProcEnviron:
 TERM=screen-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: Upgraded to focal on 2018-01-26 (633 days ago)
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.20.4 connecting started limited enabled enabled enabled enabled enabled

[Sebastien Bacher (seb128)]

the log has 'wlan0: authentication with ... timed out' warnings, looks like rather a kernel/driver/wpasupplicant issue

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1849273

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[You-Sheng Yang (vicamo)]

Seem a duplicate to bug 1667146, https://bugzilla.redhat.com/show_bug.cgi?id=1802472, and https://bugzilla.kernel.org/show_bug.cgi?id=190281

[You-Sheng Yang (vicamo)]

Also reproducible with 5.5.7-200.fc31 on Fedora.