View Full Version : Unable to connect to any server

06-05-2010, 10:32 AM
What the title says. I can't connect to any server and the game displays This error message:

Client disconnect, Unable to authenticate client

Any ideas?

DX Diag:

06-05-2010, 10:48 AM
Generally that error means that communication between you and Steam is somehow disrupted and the server thinks you don't have a legimate copy of the game.

Could just be case of restart PC, restart steam, login again, retry. Could be something related to firewalls or stuff like PeerGuardian/PeerBlock.