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I am encountering lot of drop outs and instability (constant drop out) with my Wifi on Lenovo x230 with card

Centrino Advanced-N 6205 Taylor Peak
Physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version:34
width: 64
clock: 33Mhz

Anything I tried to do, did not seem to resolve the issue. Please anybody has an idea about fixing it - driver update or something similar. I love my Linux, but I am pretty much noob.

Thank you very much in advance. Tomas

CPU: i73615 QE@2.30GHz - 8 core
Gnome: 3.36.8
Windowing: x11 product: Centrino Advanced-N 6205 [Taylor Peak]
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlp3s0
       version: 34
       serial: a4:4e:31:2a:7a:f8
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=5.13.0-41-generic firmware=18.168.6.1 6000g2a-6.ucode latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:30 memory:f1400000-f1401fff
Pilot6
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Tomas
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  • what have you tried to do? Please do list it in detail. It would make no sense for us to start listing things you've tried already. – Esther May 20 '22 at 13:08
  • also please run the script in the first answer here, which will give us the information we need to help with wifi issues – Esther May 20 '22 at 13:12
  • also, try running sudo iwconfig wlan0 power off (sub wlan0 for your wireless interface if it's different). This will turn off power management for your wifi card, so it won't sleep when it isn't busy. However, if your problem is caused by the card "power managing" when it shouldn't, this will fix it. To make this permanent (if it works), follow the answer here. – Esther May 20 '22 at 13:19
  • It may be related to your neighbors networks, or a hardware issue (detached antenna). It can't be fixed on OS level. – Pilot6 May 20 '22 at 13:31
  • do you have bluetooth enabled? because there is a kernel bug registered about this issue, specifically when bluetooth is enabled. – Esther May 20 '22 at 17:15
  • I have the wifi and bluetooth hardward for this bug, and use it without issue, on 11n. From the /etc/modprobe.d/iwlwifi.conf file, I'm using the iwldvm firmware, not the iwlmvm. – ubfan1 May 20 '22 at 19:43
  • I tried to update driver - to no avail. – Tomas May 21 '22 at 13:35
  • I tried to disable powersave on wlan, but sudo iwconfig wlan0 power off [sudo] password for tomas: Error for wireless request "Set Power Management" (8B2C) : SET failed on device wlan0 ; No such device. tomas@Sirius:~$ sudo iwconfig wlan power off Error for wireless request "Set Power Management" (8B2C) : SET failed on device wlan ; No such device. – Tomas May 21 '22 at 13:36
  • @Pilot6 I am not sure about the neighbouring network, but do you have somewhere the service manual, so I can actually open and check? Thanks a lot! – Tomas May 21 '22 at 13:52
  • You can install wi-fi diagnostic tool to your phone and see what is around you. – Pilot6 May 21 '22 at 15:57
  • @Pilot6 I lot and there is always a plenty around me. Funny part is, that when I share net over phone it tends to be stable. Computer had been overhauled - I have a custom screen, speakers and new motherboard. (Full HD on Lenovo x230, so I have a Chinese mod soldered to motherboard). I need to get tools to open computer and look for antena problem. I ran the script again - but bloody hell I have no idea what you mean by result. I got the file in txt / gz format, but what is the info I should post. – Tomas May 21 '22 at 17:35
  • You need to post contents of wireless-info.txt file. – Pilot6 May 21 '22 at 17:43
  • @Pilot6 this caught my attention, as there is no apparent reason (for me) to timeout: wlp3s0: deauthenticated from <MAC 'Jurassic Park' [AC8]> (Reason: 15=4WAY_HANDSHAKE_TIMEOUT) – Tomas May 21 '22 at 18:39
  • I can not add pictures neither add file. I am a new user.... the whole thing has a over 30 000 signs so that does not allow me to do anything either. – Tomas May 21 '22 at 18:44
  • Is it actually possible, that upgrading to 22.04 would solve the issue Wifi (if it is not a mechanical one) – Tomas May 22 '22 at 09:27

2 Answers2

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sudo apt remove backport-iwlwifi-dkms

resolved this problem caused by the dist-upgrade to 22.04 on ThinkPad T430.

ryoji
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I just found that there is a kernel bug registered about this issue, specifically when bluetooth is enabled.

A possible solution is to put the following line:

options iwlwifi 11n_disable=1

in the file

/etc/modprobe.d/iwlwifi.conf

However, this can affect your internet speed or possibly something else, depending on how your router is configured. But if your issues are caused by this bug, they may be much improved by this configuration.

Esther
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