How to Get Your Server to Appear in the Server List Print

In your game panel file manager navigate to data folder

Open data/server-settings.json

Within this file find

"visibility":
{
"public": true,
"lan": true
},

"_comment_credentials": "Your factorio.com login credentials. Required for games with visibility public",
"username": "",
"password": "",

Enter the username and password you use to log into factorio.com

Restart your server

It should now appear in the server list.