Still no connection luck
 

i've tried almost everthing. I've added the upd and pcd options in my firewall connections. I've deleted my prefrences folder and purged it too. i've forced the ip in limewire's advanced options and still no luck. I'm using a university lan, could that be the problem? but my friend uses limewire at the same university with no problem. any suggestions? thanks.

Why don't you just go see your friend's computer and LW settings?