Well today i tried to "Direct Connect" with a friend and it said i couldn't because i was behind a firewall or router. Since the second option doesn't apply to me, i think one of my programs on my computer must have a firewall that comes with it. I think this might be the problem.

On a side note. I do have a router, but it's not attached to anything at the moment. Do you think that if i used the router instead of the hub, that it would make a difference?