The CS2D doesn't try to connect to USGN. I've tried logging in the USGN Web page, and its working alright, but on the game it even doesn't show "Trying to connect". Im using Linux BTW
(NOT Wine).
USGN doesn't connect via 36963 by default, try this, go to options, net, Port, use something like 2000, and then add 2000 *UDP* to the white list on the firewall