On a further note, you might also be blocked by your firewall, if your particular configuration isn't automatically setup by the game, to allow traffic. In that case there isn't any traffic between game and profile and hence the key can't be checked.
Please follow the firewall guide as found in the topic below (first post, third attachment), it's still relevant, apart from the link to the patches page, but you don't need that. I do assume you're fully patched already.
http://80.95.161.114/shipsim/forum/index.php/topic,7737.msg85382.html#msg85382
Regards,
Fred