Originally Posted by btags
For some reason I can only connect to games when I play through a wifi connection at my school. Using a wired connection ends up in me going through a never ending connecting screen.
You'll have to verify if both the wired and wireless connections are going through the same route to server, which very possibly they aren't.
There's not much point me speculating, but its very probable that the wireless connection is managed by a router with upnp, and the hard connection has a strict / stricter firewall. It's an issue you'll have to take up with your network admins.