How to Fix Room Code Errors in Machine Party
If you or your friends encounter “Room Code Not Found” or infinite loading when entering a lobby code, use these proven fixes:
Fix 1: Check Version Mismatch
All players must be running the exact same build.
- Right-click Machine Party in your Steam Library.
- Select Properties -> Installed Files -> Verify integrity of game files.
- Ensure the main menu shows version v2.1.2 or newer.
Fix 2: Swap the Lobby Host
Because Machine Party uses direct P2P connections, players with Strict NAT (Type 3) or aggressive firewall routers cannot act as hosts. Have a player with an Open NAT or fiber connection create the room.
Fix 3: Disable Conflicting VPNs
Some virtual private networks block UDP broadcast packets required for lobby discovery. Disable active VPNs before launching Steam.
Frequently Asked Questions
Can I fix connection issues without restarting my PC?
Usually verifying game files and restarting Steam resolves 90% of lobby synchronization glitches.
Does Machine Party require dedicated servers?
No, Machine Party runs on peer-to-peer networking, meaning ping depends on the physical distance between you and the lobby host.