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How to fix “VAC was unable to verify your game session”

How to fix “VAC was unable to verify your game session”

Sometimes players complain that they encountered VAC was unable to verify your game session on CS:GO. It is quite annoying because matchmaking will fail once this error happens. You can fix this issue easily and quickly by yourself. Just try the following solutions one by one.

VAC Was Unable to Verify Your Game Session

Solution #1: Join any Community server

Solution #2: Start any Workshop map

Solution #3: Switch to Offline and back to Online mode

  • Click on Steam in the main menu and select Go Offline…
  • Confirm entering offline mode.
  • Wait a few seconds while Steam going offline.
  • Then click on Steam again and select Go Online…
  • Confirm leaving offline mode.

Solution #4: Clear download cache

  • Open Steam Settings.
  • Select “Downloads” section.
  • Click “Clear Download Cache” button.

After that Steam will restart and ask you to re-login into your account.

Solution #5: Verify integrity of game files

Don’t worry if you see “VAC was unable to verify your game session” error message when you want to launch a game like CS:GO. These solutions above are tried by plenty of users and they have fixed the problem successfully. Hope one of the solutions could also be helpful for you.