I am in your exact same boat! All previous solutions (power save mode, kernel bug, etc.) does not work for me. I noticed it usually occurs on low battery and yes I have power save mode on 2. Very frustrating to have to restart for wifi card to work! If you found a solution, please answer your own post. Given so few still face this issue in 2023, I think this may be a hardware issue with my 5+ year old Acer laptop running behind the times and with older Nvidia versions.
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