Try the fixes in this thread...
http://www.gnutellaforums.com/showth...threadid=51357
You more than likely have a Nat firewall in your Modem....
Try the UPnP fix and if that does not work you will have to Forward a Port...
You will need to know what the make and model number of your Modem/Router, have a look under it the information you will need is there..
