Well, I wouldn't be surprised if it was another issue with their servers. They seem to have a new problem with them every week or so. I know I've been putting up with lag and error 90k for the better part of all last week. I know my wireless card is partially to blame, but I'm sure a lot of it is on SE's end.

The best I can suggest is to make sure you forward the ports for this game, and try disabling the firewall =\ Not likely that it'll fix it, but you know..