[MCPE-243256] Unable to enter external Bedrock server after Minecraft 1.26.52.3 update

After updating Minecraft Bedrock to version 1.26.52.3, I am frequently unable to connect to my external Aternos Bedrock server.

Before the update, I could connect normally. After the update, I receive Kelp, NetherNet, or Door multiplayer connection errors. Sometimes I can enter the server, but I am then disconnected.

My other Minecraft multiplayer servers cubecraft,lifeboat work normally.

Device: OPPO CPH1901
Android: 8.1.0
Minecraft: Bedrock 1.26.52.3
Server host: Aternos
Server software: Bedrock
Server version: 1.26.52.3

I have tested both Wi-Fi and mobile data. I also restarted the server, re-added the server, and used the current server address and port. My friend has also experienced similar NetherNet connection problems on the same server.

The Aternos server starts normally and its logs do not show an obvious crash.

Expected result:
I should be able to consistently connect to and remain connected to my external Aternos Bedrock server.

Actual result:
The connection frequently fails with Kelp/NetherNet/Door errors, or I get disconnected after joining.

The problem started immediately after updating Minecraft.

Linked issues

duplicates 1

BDS-23108 Transport type "nethernet" renders server inaccessible Open

Attachments

Comments 8

Automation for Jira 2026-09-29T13:20:15Z

Thank you for helping us improve Minecraft! We saved your files:

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Mahin sufiyan 2026-09-29T13:57:03Z

Please try to resolve

Peter Gray 2026-10-02T12:28:20Z

I have two devices on a LAN and they receive this error when trying to play in the same world. Both devices are signed in.

Device1 is Android 14 with Mincecraft 1.26.52.3. It shows the Door error.

Device2 is and ipad(9) 16.3 with Minecraft 1.26.52. It shows the Terracotta error.

Mahin sufiyan 2026-10-02T13:20:36Z

We can only wait until they fix it.Thanks for the vote

Δiden 2026-10-02T21:14:29Z

I have the same issue. I cannot play a brand new external server on my iOS-18 iPad Pro 11th gen or join my friends’ worlds since updating the game, despite trying everything I could. Just like reported however, I could join large servers like lifeboat. Apparently many people are reporting this bug, and I just hope mojang will actually see this and fix it, because bedrock usually gets the short end of the stick.

Mahin sufiyan 2026-10-03T06:38:55Z

If you know someone facing same problem please tell them to vote here. It will help a lot

Nobody 2026-10-05T01:52:35Z

I just looked in the search engine the summary says your andriod device version does not meet the requirments for the minecraft version

Mahin sufiyan 2026-10-09T03:15:43Z

I have one solution for the problem so i found out that servers port is not working so i changed the port.here’s how you can do it if you use aternos server

Go to files then server properties and change the port from nethernet to raknet.

Hope this helps you