Unable to load Steam support library This server will operate in LAN mode only
 

My TF2 dedicated server was working previously. I had updates and rebooted and now it no longer works.

I have "sv_lan 0" in server.cfg

Ports are open in my firewall (which I've also tried disabling) and ports are forwarded in the router. Everything worked previously.

I've tried deleting:

Computer\HKEY_CURRENT_USER\SOFTWARE\Valve\Ste am\ActiveProcess

I'm supposed to be hosting a tournament in a few hours and now the server isn't working at all.

Re: Unable to load Steam support library This server will operate in LAN mode only
 

Are you using and updated server with SteamCMD and with parameter validate ?

Re: Unable to load Steam support library This server will operate in LAN mode only
 

Yep, the batch file I use to start the server updates it first with this command:

start /high /wait steamcmd +login anonymous +force_install_dir C:\tf2_server\ +app_update 232250 validate +quit