Since it was under warranty, I sent my unit to the manufacturer (Asus) and they replaced the wifi card. I tried to find out what they diagnosed as the problem, but they didn't tell me. Now I'm in doubt, because I still think that is some kind of a W11 compatibility issue, since I had the same problem in other unit (another brand, Lenovo, another Intel wifi card model), but in this one I could fix the problem 3 times and still working.
I can't tell exactly how I fixed the other unit, I only uninstalled the wifi card driver and reset the wifi settings. After doing this several times, the unit started working again. What I don't understand is why I have to do this several times and not only one, there's no logical patterns.
In the beggining I was able to fix the Asus unit doing the same thing, but once I reset to factory settings it stopped working definetely.