Minecraft Bedrock Windows 1.26.45 fails to join an external Bedrock server with Kelp / Prerequisites-32, while Android connects successfully
Description
Minecraft Bedrock Edition 1.26.45 on Windows fails to connect to an external Bedrock server and returns the error code Kelp with Error Detail: Prerequisites-32.
The exact same external server can be joined successfully from an Android device running the same Minecraft version and protocol version.
Affected Windows client
Minecraft Bedrock: 1.26.45
Version string: 1.26.45-Windows GDK Build
Build: 49559469
Branch: r/26_u4
Protocol Version: 12169
Windows build: 10.0.22631.6199
Network interface: Wi-Fi
Working Android client
Minecraft Bedrock: 1.26.45
Build: 49559481
Branch: r/26_u4
Protocol Version: 12169
SHA: 0dc2e0d8f6dbcf54498113d1d7f8a8a2accb448c
Server
An external Bedrock server using a custom port.
Steps to reproduce
Launch Minecraft Bedrock 1.26.45 on Windows.
Add an external Bedrock server using its hostname and custom port.
Attempt to join the server.
The client fails with Kelp / Prerequisites-32.
Expected result
The Windows Bedrock client should connect to the external Bedrock server normally.
Actual result
The Windows client fails during the connection process and displays:
Kelp
Error Detail: Prerequisites-32
Network diagnostics
The external server is reachable from the affected Windows machine.
DNS resolution works correctly, and the server's IP address responds to ping with approximately 27 ms latency and 0% packet loss.
Traceroute also successfully reaches the server.
Important comparison
The same external Bedrock server can be joined successfully from Android using Minecraft Bedrock 1.26.45 with the same protocol version (12169).
Therefore, the issue appears to be specific to the Windows/GDK client or its connection/handshake implementation, rather than a general server outage, DNS problem, or protocol-version mismatch.
Rize-31
Title
Minecraft Bedrock Windows 1.26.45 fails to join an external Bedrock server with Kelp / Prerequisites-32, while Android connects successfully
Description
Minecraft Bedrock Edition 1.26.45 on Windows fails to connect to an external Bedrock server and returns the error code Kelp with Error Detail: Prerequisites-32.
The exact same external server can be joined successfully from an Android device running the same Minecraft version and protocol version.
Affected Windows client
Minecraft Bedrock: 1.26.45
Version string:
1.26.45-Windows GDK BuildBuild:
49559469Branch:
r/26_u4Protocol Version:
12169Windows build:
10.0.22631.6199Network interface: Wi-Fi
Working Android client
Minecraft Bedrock: 1.26.45
Build:
49559481Branch:
r/26_u4Protocol Version:
12169SHA:
0dc2e0d8f6dbcf54498113d1d7f8a8a2accb448cServer
An external Bedrock server using a custom port.
Steps to reproduce
Launch Minecraft Bedrock 1.26.45 on Windows.
Add an external Bedrock server using its hostname and custom port.
Attempt to join the server.
The client fails with Kelp / Prerequisites-32.
Expected result
The Windows Bedrock client should connect to the external Bedrock server normally.
Actual result
The Windows client fails during the connection process and displays:
KelpError Detail: Prerequisites-32Network diagnostics
The external server is reachable from the affected Windows machine.
DNS resolution works correctly, and the server's IP address responds to ping with approximately 27 ms latency and 0% packet loss.
Traceroute also successfully reaches the server.
Important comparison
The same external Bedrock server can be joined successfully from Android using Minecraft Bedrock 1.26.45 with the same protocol version (12169).
Therefore, the issue appears to be specific to the Windows/GDK client or its connection/handshake implementation, rather than a general server outage, DNS problem, or protocol-version mismatch.
Full error information
KelpError Detail: Prerequisites-32Minecraft BedrockWin, D,,GC-10.0.22631.6199Date: 2026-09-15T12:53:46ZVersion: 1.26.45-Windows GDK BuildWorldSession: 26cd47ad-0851-404d-a531-c2dba07a2170Client: 8a22552faf1438afa0f3672f8b5a6694Please investigate whether this is related to the Windows GDK networking or connection-handshake implementation in Bedrock 1.26.45.