How can I check whatismyproxy and why does it matter? or What exactly is whatismyproxy and how do I f

Dude, restarting your router won’t fix a proxy issue if it’s set at the ISP level.

Try tracerouting to whatismyproxy’s server—might show where the traffic’s being redirected.

Or just call your ISP and ask if they’re using a proxy. Sucks, but it’s a thing.