Connectivity Problem with Minecraft - Authentication Servers are down

Technical Support
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1

System Information

Field Value
Operating System Linux - Ubuntu 24.04.2 on x86_64
Product AMP ‘Phobos’ v2.6.2.0 (Mainline)
Virtualization None
Application Minecraft
Module MinecraftModule
Running in Container No
Current State Stopped

Problem Description

Issue

When I try to log into my server using Forge 43.5.0 I get Authentication Server’s are down please try again, sorry! and so have my friends. I switched the server to vanilla/latest release and didn’t have that problem

Reproduction Steps

  • I launch the server
  • I try to enter the server
  • It says authentication server’s are down
2

This may be caused by an improper IPv6 setup on your system. Try adding -Djava.net.preferIPv4Stack=true under Java and Memory

3

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