Connectivity Problem with Euro Truck Simulator 2 - Server not showing up in convoy list

System Information

Field Value
Operating System Linux - Debian GNU/Linux 13 on x86_64
Product AMP ‘Phobos’ v2.6.4.0 (Mainline)
Virtualization Docker
Application Euro Truck Simulator 2
Module GenericModule
Running in Container Yes
Current State Ready

Problem Description

Issue

The server does run fine, but does not show up in the server list. It also says that the main server port is not listening

Reproduction Steps

  • Added the server files from ETS2 into server
  • Set up port forwarding
  • Added steam token
  • Ran server and looked in the convoy lobby ingame