Hello
I try to account for more gametraker play condition zero online en consigo.Eu put the ip of the server and not vai.Aparece the following: This server is using a newer protocol (48) than your clien.
What's this?
I hope answers and thank you very much ...

You should download the updates from a trusted source (or does steam update it automatically?). If you run an illegal copy of the game, we cannot help you with that for obvious reasons as I am sure you are aware.