To file /etc/modprobe.d/nf, to change driver options. So I suggest you check the options of the driver with modinfo iwlwifi. ( This article in German might help, but I didn't translate it). This thread about a driver bug may be related, and it suggests some tweaking with power management might help. This reports exactly the same, with no solution. What could be the culprit here? What does Error Code -110 mean? How could I investigate further? Curiously, everything works out of the box on Windows and Arch (with the same driver version).

I additionally tested on Ubuntu 20.04 and Manjaro with the same outcome. Unloading and loading the the modules iwlmvm and iwlwifi with rmmod und modprobe after startup gives the same errors. I tried older ucode versions by renaming the newer ones but to no avail. Testet on a fresh installed Ubuntu 21.10 with all packages updated. iwlwifi 0000:04:00.0: Master Disable Timed Out, 100 usec iwlwifi 0000:04:00.0: Couldn't prepare the card When I boot without ethernet cable dmesg then gives me: iwlwifi 0000:04:00.0: enabling device (0000 -> 0002) This boot-with-ethernet-cable procedure doesn't work, when the cable isn't connected to a router/network on the other end.Īfter booting, the ethernet cable can be unplugged and Wifi continues to work just fine. When the cable is not plugged in, Ubuntu behaves like there is no physical Wifi card/module. Wifi only seems to work, when I boot Ubuntu with the ethernet cable plugged in.

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