UPnP Not Working
Tags: networking, upnp, ports, troubleshooting
UPnP is unreliable on many routers. If the server does not show up, use manual port forwarding instead.
Manual setup
- Assign a static local IP to the server host.
- Forward ports 26900-26903 UDP/TCP (and 26904-26905 for crossplay).
- Restart the router after changes.
Router checks
- Disable any double NAT or guest network modes.
- Update router firmware if UPnP is buggy.
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