Natural Selection 2

Natural Selection 2

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Res Dec 7, 2013 @ 7:36am
"Authentication Failed" When joining a server.
Whenever I attempt to join a server or start a training match I get "Authentication failed, if other multiplayer games have this problem then steam may be down or blocked by your firewall" I checked it out and both Steam and Natural Selection 2 are obviously unblocked and I've been able to play other multiplayer games.

Any idea of what exactly is happening or how to fix it?
Date Posted: Dec 7, 2013 @ 7:36am
Posts: 0