Valve Anti-Cheat Challenge Timed Out

[AxisOkami]

Was able to play two matched yesterday but when coming back and trying to play more been getting this each time I get into a game.

So far things that have been done but not fixed the issue:

- Turning off anti-virus
- Verifying game files
- Restarting PC
- Uninstalling and reinstalling Deadlock

 

[scavandergaming133]

Have the exact same issue, idk what program I have that might be causing this to pop up.