That host no longer is a Gnutella servent. Telnet to it on poer 6346. You will not be able to connect. If you can't connect with telnet, your program will not be able to connect.

You'll have to find Gnutella hosts by some other means. One is to go on IRC to the EFnet network, channel #gnutella/cache.1 . Hosts will broadcast their IP's and ports to the channel with CTCP. Another is to go to a GWebcache hosts and get plugged in that way.