Well your isp could be blocking you, i doubt it but its a possibility.
check out this forum here http://www.gnutellaforums.com/showth...threadid=12051 and download a hostlist from kaya or gamer,
they work very well. If you still cant connect after that its very likely to be your isp. here is a site to download a port scanner to check if 6346 is being blocked http://www.portdetective.com/



good luck...