Mac Mini M4 Wifi unresponsive

I have a Mac Mini since 4 days ago and it had already presented wifi problems.

After some hours of working perfectly the Mac Mini disconnects from Wifi and sometimes bluetooth as well. When that happens, I go to Settings/WIFI and I find that the toggle is disabled and greyed out (I cannot enable it) and also shows a "red dot" saying "not available".

The first time it happened, I restarted the computer and everything went back to normal. However, now even with a restart, the WIFI does not recover.

I have found some threads in reddit showing up the same problem. Does anybody have experienced something like this? What can I do?

Thanks!