What I suspect the issue is, is the dorm. Nowadays many if not most universities & their dorms block or shape p2p file sharing programs. What you can try is go to LW's menu bar, Tools -> Options -> Advanced, Firewalls. Set to manual port forward. Change port number to one between 49152 - 65535 for both connecting & listening through. You may need to restart LW after this. If this does not work, not too many options left unless you try proxies which can be complex & time consuming to set up & change.

Alternatively, Phex is a less known gnutella program & might not be blocked. You could give it a try to see if it works connecting to those high port ranges. http://www.phex.org/wiki/index.php/Get_Phex