My first concern would be where you are connecting from. In recent years most colleges have been putting in some kind of limiting or prevention safeguards against their students using p2p sharing programs eating the college's expensive bandwidth. They use different techniques; some being blocking ports, some being protocol or program identification & blocking or limiting them.

But yes, also the college will have their own firewalls & NAT systems & you will have no control over those.

Have you tried Force ip option within LW? Also the option of proxies? A good range of ports to use are 49152 - 65535. These are usually the last to be blocked. However if using a proxy, the proxy itself might have certain requirements. From what I've been told, proxies are always hit and miss. Perhaps only a small % that actually work for p2p sharing (and even those can be slow).