After a fresh installation of Ubuntu 22.04 I'm not able to use my wifi. The card is the intel Wi-Fi 6 AX200.
During installation I had no trouble using the card downloading updates. After the installation I can't use wifi.
I use a dual boot with Windows 11.
I tried to fix it with sudo apt install backport-iwlwifi-dkms. After rebooting there was no change.
After that I installed the official firmware from Intel for this card by unzipping the ucode file and transferred it to /lib/firmware. After a reboot it worked.
a few hours later I started into win11 where I got a prompt regarding some firmware files that where tried to install. After googling the name it was about the mentioned network card (before I never saw this and didn't have issues in win11 with the card). After that I just forced closing the window and never saw this dialog again (I didn't know what to do and I also don't know if there is a correlation, but I wanted to mentioned it)
After my next boot to Ubuntu the network drivers where gone in terms of I couldn't use wifi so I reproduced the initial fix, but I had no luck.
$ lshw -k
Kernel driver in use: pcieport
07:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
Subsystem: Intel Corporation Wi-Fi 6 AX200NGW
Kernel modules: iwlwifi
09:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
Subsystem: ASRock Incorporation I211 Gigabit Network Connection
Kernel driver in use: igb
Kernel modules: igb
$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
$ dmesg | grep iwl
[ 3.712065] iwlwifi 0000:07:00.0: enabling device (0000 -> 0002)
[ 3.747228] iwlwifi 0000:07:00.0: CSR_RESET = 0x10
[ 3.747238] iwlwifi 0000:07:00.0: Host monitor block 0x0 vector 0x0
[ 3.747247] iwlwifi 0000:07:00.0: value [iter 0]: 0x3f7f0430
[ 3.747255] iwlwifi 0000:07:00.0: value [iter 1]: 0x3f7f0c30
[ 3.747263] iwlwifi 0000:07:00.0: value [iter 2]: 0x3f7f8830
[ 3.747271] iwlwifi 0000:07:00.0: value [iter 3]: 0x3f7f0030
[ 3.747278] iwlwifi 0000:07:00.0: value [iter 4]: 0x3f7f0430
[ 3.747286] iwlwifi 0000:07:00.0: value [iter 5]: 0x3f7f8430
[ 3.747294] iwlwifi 0000:07:00.0: value [iter 6]: 0x3f7f8030
[ 3.747302] iwlwifi 0000:07:00.0: value [iter 7]: 0x3f7f0030
[ 3.747309] iwlwifi 0000:07:00.0: value [iter 8]: 0x3f7f0c30
[ 3.747317] iwlwifi 0000:07:00.0: value [iter 9]: 0x3f7f0c30
[ 3.747325] iwlwifi 0000:07:00.0: value [iter 10]: 0x3f7f0030
[ 3.747332] iwlwifi 0000:07:00.0: value [iter 11]: 0x3f7f0030
[ 3.747340] iwlwifi 0000:07:00.0: value [iter 12]: 0x3f7f8430
[ 3.747348] iwlwifi 0000:07:00.0: value [iter 13]: 0x3f7f8430
[ 3.747356] iwlwifi 0000:07:00.0: value [iter 14]: 0x3f7f8030
[ 3.747361] iwlwifi 0000:07:00.0: Host monitor block 0x0 vector 0x1
[ 3.747369] iwlwifi 0000:07:00.0: value [iter 0]: 0x044466c2
[ 3.747377] iwlwifi 0000:07:00.0: value [iter 1]: 0x044466c2
[ 3.747385] iwlwifi 0000:07:00.0: value [iter 2]: 0x044466c2
[ 3.747392] iwlwifi 0000:07:00.0: value [iter 3]: 0x044466c2
[ 3.747400] iwlwifi 0000:07:00.0: value [iter 4]: 0x044466c2
[ 3.747408] iwlwifi 0000:07:00.0: value [iter 5]: 0x044466c2
[ 3.747416] iwlwifi 0000:07:00.0: value [iter 6]: 0x044466c2
[ 3.747423] iwlwifi 0000:07:00.0: value [iter 7]: 0x044466c2
[ 3.747431] iwlwifi 0000:07:00.0: value [iter 8]: 0x044466c2
[ 3.747438] iwlwifi 0000:07:00.0: value [iter 9]: 0x044466c2
[ 3.747446] iwlwifi 0000:07:00.0: value [iter 10]: 0x044466c2
[ 3.747454] iwlwifi 0000:07:00.0: value [iter 11]: 0x044466c2
[ 3.747461] iwlwifi 0000:07:00.0: value [iter 12]: 0x044466c2
[ 3.747469] iwlwifi 0000:07:00.0: value [iter 13]: 0x044466c2
[ 3.747477] iwlwifi 0000:07:00.0: value [iter 14]: 0x044466c2
[ 3.747482] iwlwifi 0000:07:00.0: Host monitor block 0x0 vector 0x6
[ 3.747490] iwlwifi 0000:07:00.0: value [iter 0]: 0xb00c4471
[ 3.747498] iwlwifi 0000:07:00.0: value [iter 1]: 0xf00c4471
[ 3.747506] iwlwifi 0000:07:00.0: value [iter 2]: 0xe00c4471
[ 3.747513] iwlwifi 0000:07:00.0: value [iter 3]: 0xe00c4471
[ 3.747521] iwlwifi 0000:07:00.0: value [iter 4]: 0xf00c4471
[ 3.747529] iwlwifi 0000:07:00.0: value [iter 5]: 0xb00c4471
[ 3.747536] iwlwifi 0000:07:00.0: value [iter 6]: 0xa00c4471
[ 3.747544] iwlwifi 0000:07:00.0: value [iter 7]: 0xe00c4471
[ 3.747551] iwlwifi 0000:07:00.0: value [iter 8]: 0xb00c4471
[ 3.747559] iwlwifi 0000:07:00.0: value [iter 9]: 0xb00c4471
[ 3.747567] iwlwifi 0000:07:00.0: value [iter 10]: 0xe00c4471
[ 3.747574] iwlwifi 0000:07:00.0: value [iter 11]: 0xe00c4471
[ 3.747582] iwlwifi 0000:07:00.0: value [iter 12]: 0xf00c4471
[ 3.747590] iwlwifi 0000:07:00.0: value [iter 13]: 0xb00c4471
[ 3.747598] iwlwifi 0000:07:00.0: value [iter 14]: 0xa00c4471
[ 3.747603] iwlwifi 0000:07:00.0: Host monitor block 0x22 vector 0x0
[ 3.747611] iwlwifi 0000:07:00.0: value [iter 0]: 0x00000000
[ 3.747829] iwlwifi: probe of 0000:07:00.0 failed with error -110
