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After the latest updates (Terminal: sudo apt update & upgrade) my WiFi suddenly didn't work anymore. I did a fresh installation including all applications necessary for me and again did not work after the updates.

Yesterday I reproduced it after a fresh installation (20.04 LTS - latest version) WiFi is working until I do updates.

System: P14s AMD Gen2

WiFi: Intel Wifi 6 AX210 non vPro --> support at Kernel 5.10+

OS: dual boot with win 10 + 20.04.2 LTS Ubuntu Mate, Kernel 5.11.0.27

Bluetooth still works, WiFi stops working - not even in the network list - after sudo update&upgrade.

Any recommendations?

I just switched the WiFi card to Intel because the original one (RTL8852AE 11ax) didn't work...

ThinkPad-P14s-Gen-2a:~$ sudo modprobe iwlwifi && sudo dmesg | grep iwl    
[3.191724] iwlwifi 0000:03:00.0: enabling device (0000 -> 0002)    
[3.201020] iwlwifi 0000:03:00.0: api flags index 2 larger than supported by driver    
[3.201036] iwlwifi 0000:03:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 93.8.63.28    
[3.201344] iwlwifi 0000:03:00.0: loaded firmware version 59.601f3a66.0 ty-a0-gf-a0-59.ucode op_mode iwlmvm                           
[3.287251] iwlwifi 0000:03:00.0: Detected Intel(R) Wi-Fi 6 AX210 160MHz, REV=0x420    
[3.447988] iwlwifi 0000:03:00.0: loaded PNVM version 0x324cd670    
[3.550190] iwlwifi 0000:03:00.0: Timeout waiting for PNVM load!    
[3.550200] iwlwifi 0000:03:00.0: Failed to start RT ucode: -110    
[3.550209] iwlwifi 0000:03:00.0: iwl_trans_send_cmd bad state = 1    
[3.754235] iwlwifi 0000:03:00.0: firmware didn't ACK the reset - continue anyway    
[3.766816] iwlwifi 0000:03:00.0: Failed to run INIT ucode: -110     
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  • 1
    Please edit your question to show the result of the terminal command: sudo modprobe iwlwifi && sudo dmesg | grep iwl Welcome to Ask Ubuntu.
    – chili555
    Aug 26, 2021 at 13:21
  • @chili555 added the code, sorry i am new here and tried the last 20 minutes to format the code, with no luck. Thanks for the help!
    – ra_be
    Aug 26, 2021 at 18:08
  • Does this offer a solution?wireless.wiki.kernel.org/en/users/drivers/…
    – chili555
    Aug 26, 2021 at 18:46
  • Please also show us: sudo dpkg -s linux-firmware | grep -i version and also: ls /usr/lib/firmware | grep -i pnvm
    – chili555
    Aug 26, 2021 at 19:24
  • No change after windows energy change Ćode: ThinkPad-P14s-Gen-2a:~$ sudo dpkg -s linux-firmware | grep -i version Version: 1.187.16
    – ra_be
    Aug 26, 2021 at 19:26

1 Answer 1

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[3.447988] iwlwifi 0000:03:00.0: loaded PNVM version 0x324cd670
[3.550190] iwlwifi 0000:03:00.0: Timeout waiting for PNVM load!
[3.550200] iwlwifi 0000:03:00.0: Failed to start RT ucode: -110

This is the subject of a well-known bug report: https://bugzilla.kernel.org/show_bug.cgi?id=212371#c13

Let's try the suggested fix. From the terminal:

sudo mv /usr/lib/firmware/iwlwifi-ty-a0-gf-a0.pnvm  /usr/lib/firmware/iwlwifi-ty-a0-gf-a0.bak

Reboot and tell us if there is any improvement.

EDIT: It appears that periodic updates to the package linux-firmware will install a new version of the offending file iwlwifi-ty-a0-gf-a0.pnvm and so this process will need to be repeated.

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  • Yes, thank you so much! After your suggested fix in the terminal and a reboot, my WiFi was working again :D. Thank you so much!
    – ra_be
    Aug 27, 2021 at 5:38
  • If my answer has been helpful, please accept it: askubuntu.com/tour This will help the searchers with the same issue find the solution.
    – chili555
    Aug 27, 2021 at 13:03
  • sure, i just did. Thanks again with this fast solution, much faster than from Intel or Lenovo! Great expirience with this community :). Have a nice day and wonderful weekend!
    – ra_be
    Aug 27, 2021 at 13:48
  • 1
    worked like a charm in dell inspiron 7760 with Ubuntu 20.04
    – angrykoala
    Sep 13, 2021 at 23:03
  • Thank you! Worked on Asusrock mobo running Ubuntu 20.04 kernel 5.11
    – Hammurabi
    Sep 14, 2021 at 1:23

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