I can confirm, parts of gamespy services are either down or shut down as of today, you can still login into multiplayer lobby but you will not see any users and after about 1 minute in the lobby you get kicked out of multiplayer saying invalid cd key. This affects everyone in mowas currently and possibly all other mow games that use gamespy.
1C has to investigate this and tell the customers whats up, thanks.
A lot of people are reporthing this: Look at steam thread:
http://steamcommunity.com/app/64000/...12305006360109