Minecraft Bedrock Server - Unable to connect to world


Minecraft Bedrock server running on Windows 10 Pro PC started having issues accepting connections from remote computers. This didn't affect loopback connections from a local PC (after enabling the loopback exempt), but both, PCs on a local LAN network and remote clients connecting over WAN could no longer connect.

Minecraft - Unable to connect to world

Unable to connect to world


The issue was probably introduced by a recent Minecraft Bedrock Server update (which is still in an alfa testing stage). After ensuring the UDP port 19132 was not blocked by a firewall or router, and then quite a bit of testing, experimenting, and head-scratching I eventually narrowed down the issue to some sort of incompatibility with IPv6 (which is enabled in Windows 10 by default). Disabling IPv6 fixed the issue.

  • Open Control Panel (not Windows 10 Settings) and navigate to Network and Internet > Network and Sharing Centre > Change adapter settings
  • Right-click on the network adapter you are using and click Properties
  • Uncheck the box next to Internet Protocol Version 6 (TCP/IPv6) and click OK
    Network Adapter Settings
  • Restart the Minecraft Bedrock server.

January 2021
Minecraft Bedrock Server v1.16.201.02
Windows 10 Pro (20H2)


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