iwlwifi firmware bug causing wifi dropouts

[IceEyz]

Describe the issue you are experiencing

There is a known Intel firmware bug that causes dropouts on Intel WiFi:
https://bugzilla.kernel.org/show_bug.cgi?id=203709

Arch made a patch that should workaround the Intel bug:
https://aur.archlinux.org/pkgbase/linux-beacon

Intel may or may not have fixed the bug in more recent firmware as well, but I wouldn't bet on it.

What operating system image do you use?

generic-x86-64 (Generic UEFI capable x86-64 systems)

What version of Home Assistant Operating System is installed?

6.6

Did you upgrade the Operating System.

Yes

Steps to reproduce the issue

1. Connect to a WiFi infrastucture AP with a Intel WiFi NIC.
2. Use the connection for minutes, hours, or days and look for previously mentioned logs in dmesg.
3. If it does, only a reboot will fix the problem, reloading iw kernel modules does not.

Anything in the Supervisor logs that might be useful for us?

No

Anything in the Host logs that might be useful for us?

[49031.488090] Intel(R) Wireless WiFi driver for Linux
[49031.508738] iwlwifi 0000:02:00.0: loaded firmware version 29.198743027.0 3168-29.ucode op_mode iwlmvm
[49031.528949] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 3168, REV=0x220
[49031.576983] ieee80211 phy1: Selected rate control algorithm 'iwl-mvm-rs'
[49031.580702] thermal thermal_zone2: failed to read out thermal zone (-61)
[49031.581509] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0
[49052.277325] wlp2s0: authenticate with 00:1d:c9:07:69:6f
[49052.281454] wlp2s0: send auth to 00:1d:c9:07:69:6f (try 1/3)
[49052.287161] wlp2s0: authenticated
[49052.287386] iwlwifi 0000:02:00.0 wlp2s0: disabling HT/VHT/HE as WMM/QoS is not supported by the AP
[49052.287494] wlp2s0: associate with 00:1d:c9:07:69:6f (try 1/3)
[49052.292418] wlp2s0: RX AssocResp from 00:1d:c9:07:69:6f (capab=0x11 status=0 aid=1)
[49052.293037] wlp2s0: associated
[49052.331686] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[49054.715196] wlp2s0: Connection to AP 00:1d:c9:07:69:6f lost
[49063.494074] wlp2s0: authenticate with 00:1d:c9:07:69:6f
[49063.497496] wlp2s0: send auth to 00:1d:c9:07:69:6f (try 1/3)
[49063.513898] wlp2s0: authenticated
[49063.514110] iwlwifi 0000:02:00.0 wlp2s0: disabling HT/VHT/HE as WMM/QoS is not supported by the AP
[49063.514325] wlp2s0: associate with 00:1d:c9:07:69:6f (try 1/3)
[49063.531797] wlp2s0: RX AssocResp from 00:1d:c9:07:69:6f (capab=0x11 status=0 aid=1)
[49063.532600] wlp2s0: associated
[49072.328009] wlp2s0: Connection to AP 00:1d:c9:07:69:6f lost
[49079.622427] wlp2s0: authenticate with 00:1d:c9:07:69:6f
[49079.625547] wlp2s0: send auth to 00:1d:c9:07:69:6f (try 1/3)
[49079.638530] wlp2s0: authenticated
[49079.638736] iwlwifi 0000:02:00.0 wlp2s0: disabling HT/VHT/HE as WMM/QoS is not supported by the AP
[49079.640082] wlp2s0: associate with 00:1d:c9:07:69:6f (try 1/3)
[49079.645977] wlp2s0: RX AssocResp from 00:1d:c9:07:69:6f (capab=0x11 status=0 aid=1)
[49079.646546] wlp2s0: associated
[49087.789862] wlp2s0: Connection to AP 00:1d:c9:07:69:6f lost
[49095.198314] wlp2s0: authenticate with 00:1d:c9:07:69:6f
[49095.201768] wlp2s0: send auth to 00:1d:c9:07:69:6f (try 1/3)
[49095.206143] wlp2s0: authenticated
[49095.206345] iwlwifi 0000:02:00.0 wlp2s0: disabling HT/VHT/HE as WMM/QoS is not supported by the AP
[49095.207816] wlp2s0: associate with 00:1d:c9:07:69:6f (try 1/3)
[49095.212403] wlp2s0: RX AssocResp from 00:1d:c9:07:69:6f (capab=0x11 status=0 aid=1)
[49095.213604] wlp2s0: associated
[49095.267269] wlp2s0: Connection to AP 00:1d:c9:07:69:6f lost
[49104.031043] wlp2s0: authenticate with 00:1d:c9:07:69:6f
[49104.035729] wlp2s0: send auth to 00:1d:c9:07:69:6f (try 1/3)
[49104.039616] wlp2s0: authenticated
[49104.039849] iwlwifi 0000:02:00.0 wlp2s0: disabling HT/VHT/HE as WMM/QoS is not supported by the AP
[49104.040726] wlp2s0: associate with 00:1d:c9:07:69:6f (try 1/3)
[49104.047101] wlp2s0: RX AssocResp from 00:1d:c9:07:69:6f (capab=0x11 status=0 aid=1)
[49104.047767] wlp2s0: associated
[49104.091625] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
--> [49104.649824] iwlwifi 0000:02:00.0: No beacon heard and the time event is over already...
[49104.649848] wlp2s0: Connection to AP 00:1d:c9:07:69:6f lost
[49105.802195] wlp2s0: authenticate with 00:1d:c9:07:69:6f
[49105.805387] wlp2s0: send auth to 00:1d:c9:07:69:6f (try 1/3)
[49105.809951] wlp2s0: authenticated
[49105.810151] iwlwifi 0000:02:00.0 wlp2s0: disabling HT/VHT/HE as WMM/QoS is not supported by the AP
[49105.810663] wlp2s0: associate with 00:1d:c9:07:69:6f (try 1/3)
[49105.829809] wlp2s0: RX AssocResp from 00:1d:c9:07:69:6f (capab=0x11 status=0 aid=1)
[49105.830406] wlp2s0: associated
[49108.680065] wlp2s0: Connection to AP 00:1d:c9:07:69:6f lost
[49115.868650] wlp2s0: authenticate with 00:1d:c9:07:69:6f
[49115.871830] wlp2s0: send auth to 00:1d:c9:07:69:6f (try 1/3)
[49115.878156] wlp2s0: authenticated

System Health information

System Health

version	core-2021.11.5
installation_type	Home Assistant OS
dev	false
hassio	true
docker	true
user	root
virtualenv	false
python_version	3.9.7
os_name	Linux
os_version	5.10.75
arch	x86_64
timezone	Europe/Amsterdam

Home Assistant Community Store

GitHub API	ok
Github API Calls Remaining	4982
Installed Version	1.17.2
Stage	running
Available Repositories	910
Installed Repositories	3

Home Assistant Cloud

logged_in	false
can_reach_cert_server	ok
can_reach_cloud_auth	ok
can_reach_cloud	ok

Home Assistant Supervisor

host_os	Home Assistant OS 6.6
update_channel	stable
supervisor_version	supervisor-2021.10.8
docker_version	20.10.8
disk_total	116.7 GB
disk_used	36.5 GB
healthy	true
supported	true
board	generic-x86-64
supervisor_api	ok
version_api	ok
installed_addons	Check Home Assistant configuration (3.9.0), MariaDB (2.4.0), Mosquitto broker (6.0.1), InfluxDB (4.3.0), Grafana (7.3.1), Studio Code Server (3.7.0), Log Viewer (0.12.1), SSH & Web Terminal (9.1.1), Network UPS Tools (0.9.0), Let's Encrypt (4.11.0), UniFi Controller (0.19.3), Node-RED (10.1.1), File editor (5.3.3), Samba share (9.5.1), Zigbee2mqtt (1.22.0-3), PHEV (1.3)

Lovelace

dashboards	2
resources	1
views	14
mode	storage

Additional information

No response

[agners]

Hm, this seems to be a work around for now by setting a kernel module parameter. You should be able to set that parameter by adding iwlwifi.beacon_timeout=256 to cmdline.txt. The file is on the first partition of your installation media, or in /mnt/boot/cmdline.txt if you have shell access to the OS.

[IceEyz]

Thanks for your reply and sorry for my delayed response. If I'm not mistaken, that would only work when this patch to the driver is made:

mikezackles/linux-beacon-pkgbuild@8b6f078 (beacon_timeout.patch)

Could we apply that patch?

[agners]

Hm, I see. Yeah should be possible.

From what I can tel its a workaround though. The hardcoded default today is 16, which sounds like a lot already. I wonder if increasing to 256 leads to anything reliable/useable.

[IceEyz]

So do I, but there are quite a few positive reports. It's probably a workaround for some blocking issue in the driver that happens under rather specific circumstances. FYI, I would have tried to change wifi settings on the AP to see if shorter beacon intervals would make a difference. The AP is a car however, so there's nothing to configure.

[agners]

The AP is a car however, so there's nothing to configure.

🤔

[agners]

@IceEyz the last nightly build comes with the patch included. You can test it by using the dev channel and updating to it:

ha su options --channel dev
ha su reload
ha os update

[agners]

This has been backported to 7.1 as well. Closing.