Wifi randomly disconnects [AR9462]
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
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 Ubuntu Kernel 5.13.0 without any problem.
When migrated to Ubuntu 22.04 which installs Ubuntu Kernel 5.15.0.x (which corresponds to Mainline Kernel 5.15.5) then the problems started.
The Mainline Kernel 5.15.4 corresponds to the Ubuntu Kernel 5.15.0-12.12 (date 2021-11-21 13:32:06)
The Mainline Kernel 5.15.5 corresponds to the Ubuntu Kernel 5.15.0-13.13 (date 2021-11-25 09:35:53)
I upgraded and tested unsuccessfully the following Mainline 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:/
without improvement in any of the Kernels tested.
Also the "intel_iommu=off" mentioned at https:/
I downgraded and currently running without any problem using the Ubuntu Kernels 5.13.19-
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 Mainline Kernels 5.15.4 and 5.15.5 that is also propagated to 5.16.x and 5.17.x
(started at https:/
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckR
DistroRelease: Ubuntu 22.04
InstallationDate: Installed on 2021-02-21 (432 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
NonfreeKernelMo
Package: linux (not installed)
Tags: jammy
Uname: Linux 5.15.5-
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
affects: | kernel-package (Ubuntu) → linux (Ubuntu) |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
Note: /github. com/bkw777/ mainline
I use Ubuntu Mainline Kernel Installer to install/remove the kernels
https:/
which fetches from kernel.ubuntu.com