Hello freethemuffin
Many schools block p2p use. They may use a number of techniques to do this. That's b/c p2p uses up a lot of bandwidth which schools pay a large amount of money for.
Let's hope you haven't bought LW in vain.
Using your browser go here:
http://www3.limewire.com:6346/ It should say 'Test Page was a Success'. What happened for you? This is a simple test to determine if the port LW uses is totally blocked.
You have not provided any necessary detail as prescribed here:
http://www.gnutellaforums.com/announ...?s=&forumid=29
So I can only have a guess that you are using windows 2k or later.
Here's some things you can try. Configure your firewalls:
http://www.limewire.com/english/content/firewalls.shtml
Force IP:
Force IP instructions & sample image using port 6346
Try some
Fixes for Limewire (only applicable to Windows operating systems.)