Have you tried other ports in the range that I gave you? Send a PM to Pointman (he uses Clearwire) & ask what port(s) he uses or has used.
http://www.gnutellaforums.com/privat...=newpm&u=78046

Have you tried connecting at different times of day? I'm not sure whether that would make a difference but you might find that you can connect at certain times. Also, use Google to search...you might find more info from other Clearwire users

You could also read through this thread, there might be some info to help.
http://www.gnutellaforums.com/connec...-limewire.html