NetherNet is the new network protocol used by Minecraft: Bedrock Edition to communicate with servers. It is built on modern standards and replaces the old RakNet-based network protocol. This article explains what changes for servers in this transition.
Change your server port
The switch to NetherNet requires some changes in how you connect to your Aternos server. Namely, the port you use to connect changes from a random one to the default port 19132 and is the same for all servers. Anyone who added your server to their list before the change will have to edit it to change the port.
Players who do not update the port to 19132 will be unable to connect to the server.
Bedrock Dedicated
Minecraft 26.60 removed the old protocol entirely, so your server was switched to the new protocol automatically. Using the old RakNet protocol is no longer possible in this version. As mentioned above, all your players have to change the port to 19132.
GeyserMC
GeyserMC had support for both raknet and nethernet at the same time, but since Microsoft compeltely disabled raknet, all bedrock players now have to use port 19132, regardless of your server port.
Troubleshooting
Unfortunately, the options to diagnose errors in Minecraft Bedrock Edition are fairly limited and error messages rarely point at the actual cause of the problem. Before contacting our support, please try the following troubleshooting steps:
- Make sure the port is set to 19132 in Minecraft
- Make sure your Bedrock server or GeyserMC version is up-to-date
- If you're using a tool like BedrockTogether, make sure it's up-to-date aswell
- Try logging out of your microsoft account and back into it from the Minecraft main menu
- Make sure you have the allowlist disabled in the options
- Remove any bedrock addons installed on your server
- Using a different internet connection (e.g. WiFi instead of mobile data)
- Using a VPN like cloudflare WARP
This article is about the new network protocol for Minecraft: Bedrock Edition. For help with the connection error code "nethernet", refer to the list of error codes explained in the Minecraft help center.
Diagnostic Information
When creating a support request about a NetherNet connection issue, please include all of the following:
- A screenshot of the connection error details screen. In the in-game error screen, click "Show details".
- The server address you connected to (*.aternos.me)
- The port you connected to
- Your Minecraft username
Additionally, you can add the following information if you know it:
- Your IP address
- Your Minecraft XUID