Server Ping 9999 or Unknown
Tags: server browser, ping, ports, troubleshooting
9999 or unknown ping usually means the server cannot respond to query traffic. The server may still be online but unreachable via the browser.
Fix steps
- Open ports 26900-26903 UDP/TCP on the firewall.
- Verify the server is bound to the correct IP and port.
- Test direct connect with IP:port to confirm reachability.
If hosted at home
- Check port forwarding rules and avoid double NAT.
- Disable firewall rules that block UDP traffic.
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