The (found via lspci -nnk | grep 0280 -A3 ). Your current Kernel version ( uname -r ). If your WiFi is actually working despite the message.
Method 1: Turn off Debug Initialisation via Driver Options (Recommended) iwlwifi firmware failed to load iwldebugyoyobin exclusive
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Sometimes, your chip requires a specific firmware version that is too new for your distribution's packaged linux-firmware . Intel maintains a public Git repository of the very latest firmware releases. The (found via lspci -nnk | grep 0280 -A3 )
Create or edit the iwlwifi.conf file: sudo nano /etc/modprobe.d/iwlwifi.conf especially Debian-based ones
: Some distributions, especially Debian-based ones, freeze firmware versions for stability. A newer kernel may need firmware that isn’t in the default package yet.