That's weird - you might want to pick a different server. I bought from here a few days ago and I don't even need to enter a real password. This is true whether I'm at the in game server menu or when using XFire. As you know by now, Gamespy shut down support for NWN multiplayer. You have two choices: Direct Connect to the IP at the in game server list or use XFire. Either way I get prompted for my password and I just enter random letters. After a few seconds it times out saying it's unable to reach the host and then shoots me right on through into the game/server. Near as I can tell, you don't need a multiplayer account or password to enjoy multiplayer right now as there is no master server to authenticate it. I have found XFire easiest for getting a good selection of persistent worlds to choose from.
Post edited December 21, 2012 by jpnole