Disable extra virtual adapters (like VirtualBox Host-Only Network ) in your PC's network settings, as they can confuse the game's discovery protocol.
: If you have software like Radmin VPN, Hamachi, or ZeroTier installed, disable their network adapters in your Windows Network Connections panel. These virtual adapters can confuse the game's network engine, forcing it to look for servers on the wrong network interface. how to play serious sam 3 multiplayer lan without steam hot
If you want the purest, fastest LAN experience without any emulation, you need the tool. or ZeroTier installed
Check both the and Public boxes next to Serious Sam 3 to ensure unrestricted traffic flow. Step 4: Launch and Host the Match fastest LAN experience without any emulation