Your probably screwed lol
(sorry). Try changing ports: In LW tools > options > advanced > firewall config. Change LW's listening port to 64049 (or something in the range of 49152 - 65535) > apply > ok.
Otherwise check around campus and see if anyone else can connect using a file sharing program and see what they are doing. Or try sucking up to the tech support people on campus and see if they can help you out.