** Attachment added: "screen shot of the error messages during collect"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970965/+attachment/5585202/+files/Screenshot%20from%202022-04-29%2018-28-17.png
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1970965
Title:
Wifi randomly disconnects [AR9462]
Status in linux package in Ubuntu:
Confirmed
Bug description:
my hardware : laptop Asus N751JK Network controller: Qualcomm Atheros
AR9462 Wireless Network Adapter (rev 01) Subsystem: AzureWave AR9462
Wireless Network Adapter
I was runing Ubuntu 20.10, 21.04 up to Ubuntu 21.10 with Kernel 5.13.0
without any problem.
When migrated to Ubuntu 22.04 which installs Kernel 5.15.5 then the problems
started.
I upgraded and tested unsuccessfully the following Kernels : 5.15.28,
5.15.36, 5.16.14, 5.16.20, 5.17.4, 5.17.5
I disabled the power save as explained at
https://askubuntu.com/questions/1403773/22-04-wifi-keeps-disconnecting-for-a-few-seconds-frequently/1404471#1404471
without improvement in any of the Kernels tested.
Also the "intel_iommu=off" mentioned at
https://groups.google.com/g/linux.debian.kernel/c/RFpPIp0cncA/m/v9ELDxLICgAJ
Bug#994590 didn't help.
I downgraded and currently running without any problem using the
Kernels 5.13.19-051319-generic or 5.15.0 or 5.15.4
There is no problem in my airpoint (router) nor my internet access, I have
other different computers and devices working correctly on wifi.
In addition my N751JK works correctly when using the Ethernet adapter for the
physical cable.
seems to be something between 5.15.4 and 5.15.5 that is also
propagated to 5.16.x and 5.17.x
(started at https://bugzilla.kernel.org/show_bug.cgi?id=215918)
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: unknown
DistroRelease: Ubuntu 22.04
InstallationDate: Installed on 2021-02-21 (432 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
Tags: jammy
Uname: Linux 5.15.5-051505-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
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