Having a major wifi issue

So I have my PlayStation Portal. Completely up to date, I’ve used it on my home WiFi (works instantly) and I’ve used it on various other WiFi as well up to a point: I tried to connect to my work WiFi, and it doesn’t work. Since then, it doesn’t work on any other WiFi (except for my own at home AND my phone as a hotspot from anywhere) - What’s more puzzling is that my friend at work has a Portal and his works on that WiFi just fine. Obviously, my PS5 at home is on rest mode and works with my phone hotspot, so it has to just be the WiFi. Very specific issue it seems: only works on home WiFi or phone hotspot (anywhere).