One more thing...so far the only way around this has been to change the port number and restart Limewire.

edit: I tried upnp but I don't think it worked. I installed the UPNP interface in windows and i enabled it on my router...didn't work. One more weird thing. When I'm downloading and uploading with no problems I can't log in to my email...it times out. I'm sure there's a connection here.