Public bug reported:
I have upgraded a desktop system from 20.10 to 21.04
Then, the computer didn't connect to my WiFi network anymore ! When I opened
Network manager, I could see the WiFi networks of my neighbours but not mine !
My Wifi network is provided by a Freebox (french provider Free) and choose
automatically the channel for the Wifi network (n type). At home, it was
channel n° 13. The neighbours were on channel 6.
So I changed the setup of my box manually to channel 11 and the computer can
see again my network and connect without problem ! Of course, this problem
didn't happen with the 20.10 version : it was connected on channel 13 before
the upgrade !
So it seems that Ubuntu 21.04 is unable to connect to a network on
channel 13 !
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: network-manager 1.30.0-1ubuntu3
ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12
Uname: Linux 5.11.0-16-generic x86_64
ApportVersion: 2.20.11-0ubuntu65
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 27 19:01:54 2021
InstallationDate: Installed on 2020-04-10 (382 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
IpRoute:
default via 192.168.0.254 dev wlp4s6 proto dhcp metric 600
default via 172.20.10.1 dev bnep0 proto dhcp metric 750
169.254.0.0/16 dev bnep0 scope link metric 1000
172.20.10.0/28 dev bnep0 proto kernel scope link src 172.20.10.6 metric 750
192.168.0.0/24 dev wlp4s6 proto kernel scope link src 192.168.0.10 metric 600
SourcePackage: network-manager
UpgradeStatus: Upgraded to hirsute on 2021-04-26 (0 days ago)
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI
WWAN-HW WWAN
running 1.30.0 connected started full enabled enabled
enabled enabled enabled
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug hirsute wayland-session
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https://bugs.launchpad.net/bugs/1926325
Title:
After upgrade to 21.04, WiFi unable to connect on channel 13
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