Connectivity Problem with Minecraft - Player can not Connect

Technical Support
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1

System Information

Field Value
Operating System Linux - Debian GNU/Linux 12 on x86_64
Product AMP ‘Callisto’ v2.5.1.8 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Ready

Problem Description

Issue

The player mentioned has not been able to connect despite numerous attempts. I’m not seeing any player authentication in the console log, so the request to join isn’t even making it to the server. I have two other players who were able to connect with no issues. Any idea on how to move forward?

Reproduction Steps

  • Added port forward rules in router and device firewall
  • flushed dns
  • disabled both machine and router firewalls
2

Double check that any domains you have for DNS aren’t being proxied at all. (eg with CloudFlare)
If that all looks fine, it could be some weird IPv6 issue

3

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