Astroneer Server Support - Can't connect to host

sirbaas · September 28, 2024, 4:00pm

Field	Value
OS Name/Version	Proxmox 8.2.4 host, with Ubuntu 24.04 server with AMP installed (CubeCoders)
AMP Release	Callisto v2.5.1.8, built 17/09/2024
Product Name/Version	Astroneer config commit 364f658
Virtualization	Docker
Application	Astroneer
Module	MinecraNoneftModule
Running in Container	Yes
Current State	Running

Problem Description:
I have created an Astroneer server in the AMP console, to play the game with friends.
The server is not online through local-network IP, but it is through public IP.
When trying to connect, I get an error is

Steps to reproduce:

Create astroneer instances
Start instance and wait for download
Add the server through you Public IP

Test actions taken to try to resolve the problem:

changing the game port from 8777 to 7777
changing container image to cubecoders/ampbase:wine
turn off “Run in Docker Container” > this resulting is not starting of the Astroneer instance
add “net.AllowEncryption=False” to local Engine.ini settings
Setting up the Promox host in DMZ of Router
Turned off firewall of Proxmox and Ubuntu server.

Things I have checked:

UPnP turned off
topic on same subject:
** Connectivity Problem with Astroneer - Trouble connecting to astroneer server - #2 by Greelan > I used my public ip to connect
** Oracle Cloud Astroneer Server Running but can't join > dont have ARM system, have Intel CPU
** Connectivity Problem with Astroneer - Astroneer Cannot connect | Console showing no logs > is not running in container
ps Because im new, i can only add one picture. When i get replay, I will add my instance settings. They should be default.
** Startup Issue with Astroneer - Cannot start Astroneer Server & Startup Issue with Astroneer - Server does not start at all > my server did start as container
** Connectivity Problem with Astroneer - Astroneer connectivity issues > moved host to dmz, so port forwarding was not needed. Problem remain. After that created all port-forwards, still no change. Server remain online in overview, but cant connect to server on Public-ip or local-ip.
** Connectivity Problem with Astroneer - Astroneer server problems something in template was fixed. Maybe something with Last Arguments, my container used “./AstroServer-Win64-Shipping.exe” -ini:Engine:[SystemSettings]:net.AllowEncryption=False Port=8777 ConsolePort=1234 -log
** Connectivity Problem with Astroneer - Error in the Console (Linux) - #5 by gorgarp > did add net.allowencryption=false

Greelan · September 28, 2024, 9:27pm

The Astroneer client can only connect using the public IP. If you are trying to connect to your server on the same network using the public IP but can’t, you likely have a NAT hairpin/loopback issue.

sirbaas · September 29, 2024, 10:23am

I had to look it up what is mean. The following is correct? “hairpin NAT allows you to run a server inside your network but address it as if you were outside your network”

The Ubuntu machine that has default a loopback interface installed. Not sure how now to solve NAT hairpin/loopback issue. A solution that I found was created DNS override?. I did found this post and double check all the suggestions. Do you have any idea what to check to resolve this?

Greelan · September 29, 2024, 10:40am

This is a router issue. And DNS won’t help, since Astroneer can’t resolve domain names. You will need to look at your router manual.

sirbaas · September 29, 2024, 11:07am

Will check the router manual now, for NAT things.

Oke to check what is happening, I added Pfsense in between the route and AMP server. So I can check if the request is getting received. So now it is: Router with DMZ settings > Proxmox > Pfsense with port forwarding > AMP server in different network then game pc.

When trying to connect, i dont see the request coming in on port 8777 with tcpdump https://www.youtube.com/watch?v=ngwae1UvS-Q < following this guide

Edit/Update
Follow up. I did the testing and result was that no entry was present when trying to connect. Seem that no connection is being made to Pfsense, so router problem wouldn’t be far-off.
Second, i check the technical documention of Router and there is no mention of hairpin of loopback. Under NAT topic there was some information about DMZ.

A Demarcation Zone or Demilitarized Zone (DMZ) creates a publicly accessible subnetwork behind your firewall. Configuring a DMZ rule allows you to add public services to your WAN without compromising the overall security of your network.

Also did found more site, where this problem is described. But solution is not as easy is seems

Also checked the astroneer documentation, but that has no troubleshoot section Astroneer Host Your Own Dedicated Server Set Up Details! – Astroneer Blog

I did found a merge request for Astroneer server config, @Greelan do you need anything. So the merge can come out of draft Various: add public IP selector setting by Greelan · Pull Request #822 · CubeCoders/AMPTemplates · GitHub ?