Your CD key is not authorised to play this game. (Steam)

[Luna-old]

I've just been having this issue, whenever I try to join a SWBFSpy server, it says that my CD key isn't authorised to play the game.

I'm not sure why it would be saying this.

[Anyder]

Please, look for similar threads before starting a new one.
Here's what u might be looking for - http://www.swbfgamers.com/index.php?topic=10765.msg106904#msg106904