Connectivity Problem with Minecraft - getsockopt connection refused

System Information

Field Value
Operating System Linux - Ubuntu 24.04.3 on x86_64
Product AMP ‘Phobos’ v2.6.4.2 (Mainline)
Virtualization None
Application Minecraft
Module MinecraftModule
Running in Container No
Current State Ready

Problem Description

Issue

When another user tries to connect to the Minecraft server, it is impossible to connect and the message “getsockopt connection refused” appears.
However, the ports are open on the router.
And I, on the other hand, can connect to the server without any problem.

Reproduction Steps

  • Server startup
  • connection via the address provided
  • error getsockopt connection refused

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