CD-Key is not valid?

[destiny]

I can only join PRTA server, when I try to join other servers (e.g. Tactical Gamer) it says that my CD-Key is not valid.. what could it be?

[Click]

I have had the same problem in the past just reinstall vbf2 1.5 patch and it should be good as gold again if not uninstall PR and BF2 and then reinstall them all again and that should work also.

[Redamare]

I just had that issue last night but thats 100% because i tried joining one server with two computer using the same log in name ^-^ i guess thats not allowed HUH hah . . funny that this poped up the day after lol

[ghettostankk]

I've had that happen twice.... the only thing I ever changed on my pc was a password to the admin logon screen for windows... each time went i went to log on to PR my password was gone and i had to retype it in, which never happens. When I tried to join a game it told me my cd key was invalid. The only thing I could do was buy a new copy of bf2. good luck.

[Punkbuster]

I can only join PRTA server, when I try to join other servers (e.g. Tactical Gamer) it says that my CD-Key is not valid.. what could it be?

Poor man...
I guess you are cursed with reinstallations...
Just try reinstalling the patch if not try the whole game