I have the same issue on a mips24kc machine with AX210 card. I'm using openwrt snapshots, which currently uses 5.15-rc6 backport drivers. I generated an additonal patch to update drivers/.../iwlwifi to 5.15.5, but it didn't help.
Tried with all currently released firmwares in linux-firmware tree, 59-66, and a few pnvm files visible though the commit log, none of them works.
I have the same issue on a mips24kc machine with AX210 card. I'm using openwrt snapshots, which currently uses 5.15-rc6 backport drivers. I generated an additonal patch to update drivers/.../iwlwifi to 5.15.5, but it didn't help.
Tried with all currently released firmwares in linux-firmware tree, 59-66, and a few pnvm files visible though the commit log, none of them works.