I've fixed it. I apparently renamed my realmlist to realmist.wtf.wtf and it just wasn't noticeable to me with how my files are displayed.

It seems to be only having an effect on me. Others are able to connect. Just to be clear, yes I've checked the realmlist and ensured it's read only, yes I (to my knowledge at least) have unblocked things on my firewall, and yes I don't have a proxy or VPN unless there exists one on my PC without my ...

I'm unable to even log in. Every time I attempt to log in, it attempts to connect to the server for at least 20 seconds before telling me I can't connect.