This could be due to ports not being open, or the machine the server is on has more than one active internet connection open (this can happen if you have a VPN connected while you try to run your server)

The server is having trouble responding to player connection queries.'I am getting a 'server setup incorrectly' message when I try to join the server'.Make sure the number in steam_appid.txt is 242760 (see guide below), and your Server.cfg “serverSteamAccount” value is set with a Login Token from Steam's Server Account Management page (see guide below).'I am getting an 'incorrect password' message when I try to join the server, even though my password is correct/there is no password'.You can join your server by joining it in the LAN list. Try asking a friend to search for your server in the Dedicated (Internet) list using the name filter. This isn’t a problem since the server should still be accessible from the internet. For some reason, if you are on the same router network that your dedicated server is on (or it’s on the same computer you are using to play the game), The Forest will put your server in the “LAN” list instead of the “Internet” list, even if the server is internet-facing.

'My dedicated server only shows up in the Dedicated (LAN) list for me'.Before I begin the guide, here are some top questions I see asked by people having trouble with the dedicated server:

The forest steamworks fix v6