go it Ususally, just reconnecting a few times will get you into the server. But if the problem persists, here are a few simple fixes you can do. Valid CD Key is not reaching GUIDAUTH Server An annoying, but simple problem to fix. If you get this error, close your game and go into your Enemy Territory directory, and open etmain. This can be found at: C:/....<by default Program Files>...../Wolfenstein - Enemy Territory/etmain Right click on a blank space in the folder, and choose to sort the folder by Name. Then look down for a file called 'etkey', and delete it. Restart ET, bring down the console (see console section of the FAQ for help with this), and type in: /cl_punkbuster 1 Press enter. This generates a new CD key and will fix your problem. Yet another way to fix this problem There is also a 2nd way of doing things if you still have problems. Here's what Punkbuster had to say about this problem: Punkbuster wrote: Players who are getting "Empty CDKey" messages trying to connect to PunkBuster ET Servers may attempt a manual CDKey registration. Press the tilde key (the ~ key) to bring down the game console from any game screen and enter the following command (without quotes): "/pb_cdkeyreg". You should see a message stating that a Registration Request was sent to the GuidAuth Master Server. After a few seconds (perhaps up to 30 seconds) you should see a message stating that the CDKey Registration was successful. After that, there should be no more messages about an Empty CDKey when trying to join a PB Server. If for whatever reason you have a problem and need to update PunkBuster, it is very simple to do. Open the PunkBuster folder, this can be found at: C:/Program Files/Wolfenstein - Enemy Territory/pb You should see an .exe excutable file called pbweb.exe. Open it. PunkBuster will now begin to update. It will tell you to press any key to quit when it is finished. DO NOT close the program in the middle of updating, even if you think it has crashed. It is updating PunkBuster by downloading files, and it's speed depends on your connection and processor speed. IMPORTANT: During the updating, if you see errors, there is nothing wrong. The program is simply telling you that those files are up-to-date- and do not need updating. Only close the program after it prompts you to!
from where u downloaded it ? make sure u downloaded it at www.enemy-territory.com cuz thats the officical site , u can ask at their forums too