"HW problem - can not stop rx aggregation" with AC 3168NGW

Ubuntu Version:
24.04 LTS, 6.14.0-36-generic #36~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC

Desktop Environment (if applicable):
XFCE

Problem Description:
I am having problems of the kind
“kernel: wlp2s0: HW problem - can not stop rx aggregation for 8c:86:dd:c6:fa:b4 tid 6”
for a Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] (rev 10)
on Ubuntu 24.04 LTS with newest updates.
Wifi is interrupted then.

I already tried options iwlwifi 11n_disable=1 in /etc/modprobe.d/iwlwifi.conf
but this is not a real solution, it only makes Wifi slower.

It does appear when having larger downloads and e.g. with speedtest.net .

Is there some newer iwlwifi version I can try?

Relevant System Information:
Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] (rev 10)
Ubuntu 24.04 LTS.

uname -a:
6.14.0-36-generic #36~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Oct 15 15:45:17 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

iwlwifi 0000:02:00.0: loaded firmware version 29.0bd893f3.0 3168-29.ucode op_mode iwlmvm

currently without iwlwifi 11n_disable=1
iw wlp2s0 station dump

tx bitrate: 433.3 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 1

rx bitrate: 433.3 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 1

ls -l /lib/firmware/iwlwifi-bz*
-rw-r–r-- 1 root root 624834 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-fm-c0-92.ucode.zst
-rw-r–r-- 1 root root 630666 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-fm-c0-94.ucode.zst
-rw-r–r-- 1 root root 633296 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-fm-c0-96.ucode.zst
-rw-r–r-- 1 root root 47973 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-fm-c0.pnvm.zst
-rw-r–r-- 1 root root 566927 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-gf-a0-92.ucode.zst
-rw-r–r-- 1 root root 570276 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-gf-a0-94.ucode.zst
-rw-r–r-- 1 root root 573360 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-gf-a0-96.ucode.zst
-rw-r–r-- 1 root root 7586 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-gf-a0.pnvm.zst
-rw-r–r-- 1 root root 508893 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-hr-b0-96.ucode.zst
-rw-r–r-- 1 root root 330 Nov 17 11:54 /lib/firmware/iwlwifi-bz-b0-hr-b0.pnvm.zst

wireless-tools 30~pre9-16.1ubuntu2 is there and seems to be the latest version.

For some reasons
linux-modules-iwlwifi-6.14.0-36-generic is not installed according to
synaptic, but there is:

# modinfo iwlwifi
filename:       /lib/modules/6.14.0-36-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko.zst
license:        GPL
description:    Intel(R) Wireless WiFi driver for Linux

Do I have to reinstall this after going to the hwe kernel?

Screenshots or Error Messages:
“kernel: wlp2s0: HW problem - can not stop rx aggregation for 8c:86:dd:c6:fa:b4 tid 6”

What I’ve Tried:
iwlwifi 11n_disable=1` in /etc/modprobe.d/iwlwifi.conf

I would try iwlwifi 11n_disable=8 and post results from terminal for nmcli con show
I don’t think you need linux-modules-iwlwifi as that is basically backport-iwlwifi-dkms that is signed so it works with Secure Boot

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