Unsolved - No Reply from OP Multiplayer error

[Power1623nation_jaguars]

So I was trying to set up a ROR server and I keep getting this error: Registration failed, response code: HTTP 503, body: {"result":false,"message":"Could not connect to your server and verify it's version. Please check your Firewall or leave it as it is now to create a local only server. Your server is NOT advertised on the master server! What should I do

 

[CuriousMike]

You need to port forward, which is the first step on the server setup page: https://docs.rigsofrods.org/gameplay/multiplayer-server-setup/#port-forwarding