Wifi doesn't connect on PC but is fine on my phone

[gurankas]

My system config is
5950x, 32 gigs 3600 cl16(i think), x570 Aorus Ultra motherboard with AX200 Wifi 6 on it, 3070 GPU
I have been having problems connecting to my wifi for a month now. 
The landlords have 2 wifi frequencies for the same connection: 2.4Ghz and 5Ghz
The 2.4 Ghz is very stable and I have no problem maintaining the connection but the 5Ghz one is very hard to connect to. It keeps asking for the password and everytime I put the correct password, it says "unable to connect" or asks the password again

This wasn't always the case and I haven't had this problem for many months since I made this PC in May.
And no, I don't know what changed. I asked my landlord if they changed anything but he said nothing(not a very tech savvy person) but I do know he upgraded the connection speed.

Also, I happen to have a wifi adapter lying around as well and tried to connect using that. The connection stability is better idk why but it still has troubles connecting to it and the 2.4Ghz is definitely much more stable (and much slower) than the 5Ghz.
My drivers are up to date for the motherboard wifi so I don't know what else to do.