are either of u using firewall software ? or are you connecting to the net via a network? these can cause problems, if this isnt the case, all i could suggest is a safer way to setup things rather than using input, and to use the last flag in the command:
CREATE NET GAME Gamename, Playername, Number Of Players, Flag
to set whether ya want peer to peer or host/client , being 1 or 2 respectively
if no joy i can send ya a copy of my netlobby code and media, its about 35k compressed, you have to compile it yaself
optic blast! megablast! have a blast!!