Connectivity Problem with Minecraft Bedrock - Connection via Minecraft not possible, even with correct Adress

System Information

Field Value
Operating System Linux - Debian GNU/Linux 13 on x86_64
Product AMP ‘Proteus’ v2.8.0.0 (Mainline)
Virtualization Docker
Application Minecraft Bedrock
Module GenericModule
Running in Container Yes
Current State Ready

Problem Description

Issue

It seems I can no longer connect to the server from Minecraft. This started after the latest Minecraft update, version 26.3, and the subsequent updates. In Minecraft, no proper error message appears, and the hosting server doesn’t recognize that a player is trying to connect. I can revert to the previous version because I don’t want to play the older one. Do you have any ideas what else I can try, or can you perhaps identify the problem using my account information?

Thank you for processing my tickets.

Reproduction Steps

  • Server address checked
  • Hard reboot
  • I tried logging in with other computers.
  • other IPs from the pool were used
  • AMP update
  • Instance Update
  • Game version compared