Help!

[Sup3rS0nic]

Me and my friend are trying to play a netgame together on SRB2, but SRB2 can't (or won't) connect to my friends server and my friends can't (or won't) connect to my server! If anyone can help please, post some suggestions.
:(

 

[Sky The Destroyer]

Forward ports 5029 and 5030. (At least that's what I've been told. It never has worked for me, though.)