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WiFi (iwlwifi) stopped working

Linux Kernel, Network, and Services configuration.
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mm-privacy
Posts: 10
Joined: 2021-08-21 10:36

WiFi (iwlwifi) stopped working

#1 Post by mm-privacy »

Hello,

well, today I had a surprise - my WiFi on my Lenovo X1 Carbon (6th generation) was not working anymore. Yesterday everything was fine. Whereas today the network manager (Debian Buster with Cinnamon) does not even show me the WiFi device.

After checking several internet pages, which did not help, here is the first good hint I found:

sudo dmesg | egrep 'wl|b43|brcm|ssb|firmware'
[ 0.543882] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 3.634972] i915 0000:00:02.0: firmware: direct-loading firmware i915/skl_dmc_ver1_27.bin
[ 3.635370] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27)
[ 5.200524] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[ 16.383942] iwlwifi 0000:04:00.0: firmware: direct-loading firmware iwlwifi-8000C-36.ucode
[ 16.384506] iwlwifi 0000:04:00.0: loaded firmware version 36.9f0a2d68.0 op_mode iwlmvm
[ 16.563199] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
[ 17.602783] iwlwifi 0000:04:00.0: SecBoot CPU1 Status: 0x3040001, CPU2 Status: 0x0
[ 17.602792] iwlwifi 0000:04:00.0: Failed to start INIT ucode: -110
[ 17.615231] iwlwifi 0000:04:00.0: Failed to run INIT ucode: -110

Searching for this error message did also not provide me any help...

Can anybody help me?
Of course, I am also happy with a link which will point me in the right direction.

BR Martin

Marie SWE
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Re: WiFi (iwlwifi) stopped working

#2 Post by Marie SWE »

Hi :)
You saying yesterday everything was fine.. so what has change since yesterday.. new updates?
If you test

Code: Select all

nmcli dev status
Can you see your wifi card?
Why make things complicated in life, if you can make it easier for yourself... Do it. ;o)
You only have one life, so make the most of it and enjoy it while you can.

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Re: WiFi (iwlwifi) stopped working

#3 Post by FreewheelinFrank »

Is it dual boot with Windows?

mm-privacy
Posts: 10
Joined: 2021-08-21 10:36

Re: WiFi (iwlwifi) stopped working

#4 Post by mm-privacy »

Hi all,

thank you for your fast feedback - and the end of the story is... the next day WiFi was working as nothing has happened before.

nmcli dev status shows the WiFi device again:

mcli dev status
DEVICE TYPE STATE CONNECTION
enx00e04c682709 ethernet verbunden config DHCP
enp0s31f6 ethernet nicht verfügbar --
wlp4s0 wifi nicht verfügbar --
lo loopback nicht verwaltet --

It is not a dual boot system - Debian only - since many years ;-)

Of course it would be nice to know why but I am happy that I can continue using WiFi.

BR Martin

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Re: WiFi (iwlwifi) stopped working

#5 Post by FreewheelinFrank »

Possibly just a hardware glitch where the device didn't wake up from sleep mode?

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