8050, forward UDP 8050 on your router if hosting from home, and test direct connect with one remote friend before waiting for the public server list.Firewall checklist
- Confirm the server is running and listening before changing firewall rules.
- Check the config port. If you use the default, plan around UDP
8050. - Allow the server executable through Windows Firewall or your Linux firewall.
- If hosting from home, forward UDP
8050to the host PC local IP address. - Reserve the host PC local IP so router forwarding does not break later.
- Ask a friend outside your network to test direct connect.
- If direct connect works, stop changing firewall rules and troubleshoot server-list visibility separately.
Where the block can happen
| Layer | What to check | Common mistake |
|---|---|---|
| Server app | Server process is actually running | Fixing firewall while the server is closed. |
| Windows Firewall | Allow the server app or UDP port | Allowing only private networks when friends connect from outside. |
| Linux firewall | Allow UDP 8050 | Opening TCP only. |
| Router | Forward UDP 8050 to the host PC | Forwarding to an old local IP. |
| VPS provider firewall | Open UDP 8050 in the cloud panel | Opening Linux firewall but forgetting provider rules. |
TCP, UDP, or both?
For Romestead server connection troubleshooting, treat UDP 8050 as the important rule. If your router only offers a combined TCP/UDP option, choosing both is usually fine while testing. If it asks for separate rules, make sure UDP is included.
When firewall is not the issue
- If the server exits immediately, check .NET 8 Runtime and logs first.
- If direct connect works but the list does not show the server, troubleshoot server-list visibility.
- If players join but lag, check upload speed, CPU, RAM, and host location.
- If your ISP blocks inbound connections, a VPS or managed host may be easier than more router changes.
Related Romestead server guides
Use port 8050 not working for deeper connection checks, multiplayer not working for the full join path, server not showing in list when direct connect works, and VPS setup if home networking keeps blocking friends.