- Make sure you have one q3key file located in your " Quake III Arena\baseq3 " folder and that it contains the correct cd-key. If you find any q3key files in your mod folders, delete them. That's it!!!! There was a q3key file in the q3ut3 folder. After deleting it, I can connect to all se...

I have the same problem. I do have a legitimate CD key from the case of my Quake III CD, I played for years with it. I now mostly play the Urban Terror mod. But now I get this annoying PB message on certain servers, which I could connect to a month ago! On other servers I get INVALID_CDKEY. And to y...