MasterServers.vdf is the primary configuration file used by Counter-Strike: Source (CS:S) to locate and display active game servers in the in-game browser. When this file is missing, outdated, or corrupted, the "Internet" tab in the server browser appears empty. What is MasterServers.vdf?
Steam or the game itself may try to overwrite this file with a default (and potentially broken) version upon launch. Right-click the new MasterServers.vdf Properties , check the box, and click Alternative: Using Steam's Built-in Browser masterserversvdf cs source download full
You need to find where your game is installed. Typical paths include: MasterServers
: Some malicious public servers rewrite your VDF files to redirect you to bloated or fake community servers. How to Safely Download and Install MasterServer.vdf check the box