Have you heard about this:
http://www.gnutellaforums.com/showth...&highlight=cox
Take the advice. Then if you're still having problems post back here. Tell them you're paying for a service & you expect the full service that you're paying for without any filtering, etc.
What firewalls do you have?
Go here:
http://www3.limewire.com:6346/ & tell us what happens. It should say your Test page was a success.
Make sure your Java is up to date:
http://www.limewire.com/english/cont...radejava.shtml