So, decide its time to kill some zombies, and of course, server crashes. Its down for about 10 minutes, and afterwards, start getting " Steam servers are too busy to handle your request for L4D2. error code 2". After a bit of trying, its downloads a tiny update. Game works now, but when I try to connect to the server, I get an ingame error "please unload plugins before playing on a VAC secured server"!?
Server is up, Im validating files now to see if that changes anything. The heck did they do now!?