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mager56723
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:
http://pastebin.com/wJX4mrvA

FM_Jarnis
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.