Connectivity Problem with Minecraft - Admin unable to connect to minecraft server

System Information

Field Value
Operating System Linux - Debian GNU/Linux 13 on x86_64
Product AMP ‘Deimos’ v2.7.2.8 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Ready

Problem Description

Issue

[me] was kicked due to keepalive timeout!
Failed to deliver packet, sending fallback clientbound/minecraft:system_chat
io.netty.channel.StacklessClosedChannelException
at io.netty.channel.AbstractChannel.close(ChannelPromise)(Unknown Source) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final]
[me] lost connection: Disconnected
[me] left the game

Reproduction Steps

  • logged onto the server through minecraft
  • have admin panel running on browser
  • kicked after about 30 seconds