Games like CS: GO (Counter Strike: Global Offensive) is very popular and is enjoyed by different players across the world. But many players have reported that when they try to queue for matchmaking, a message appears as “ VAC was unable to verify your game session” and the matchmaking fails. This problem also occurs when players try to join the Stream community as well. Here in this article, we will try to find why this error occurs and also suggest few ways about how to resolve this problem successfully. thewebtreee