Connectivity Problem with Minecraft Bedrock - Server is up but clients can't connect

Technical Support
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1

System Information

Field Value
Operating System Linux - Ubuntu 26.04 on x86_64
Product AMP ‘Proteus’ v2.8.0.4 (Mainline)
Virtualization None
Application Minecraft Bedrock
Module GenericModule
Running in Container No
Current State Ready

Problem Description

Issue

I’ve been trying multiple clients (different pcs and networks) connecting via LAN or over the internet to my server, which was running fine last week. Nothing seems to work. I either get a “NetherNet” or “Boat” error.

Reproduction Steps

  • Check server is running and try to connect
  • Disabled other network services that might interfere with AMP (namely Tailscale)
  • Tried connecting via LAN IP and through internet.
2

Could be related to a bug that Mojang is aware of:

3

The boat error is normally due to mismatched versions or missing add-ons from what I’ve seen.