Can't Join Bedrock Server — NetherNet Transport Issue

Mojang has changed the default transport protocol from RakNet to NetherNet on newer versions of Bedrock Dedicated Server. RakNet is no longer supported — NetherNet is now the only available transport protocol.

Why this happens

NetherNet is a WebRTC-based transport protocol introduced by Mojang to replace RakNet. If players are unable to join your server, it may be due to:

• The player is on an outdated Bedrock client that doesn't support NetherNet.
• The player's network or firewall is blocking WebRTC connections.
• The server's server.properties still has transport=raknet, which is no longer supported.

Error Codes

• Error Code: Terracotta — Your server is still using RakNet. Set transport=nethernet in server.properties and restart.
• Error Code: Door — The server needs a restart to apply the new server.properties changes. Stop and start your server.

How to fix it

Make sure your server is set to use NetherNet:

1. Stop your server.
2. Go to the Files tab in your panel.
3. Open server.properties.
4. Find the line that starts with transport= and set it to nethernet:

transport=nethernet

5. Save the file and restart your server.

Using Geyser for Crossplay?

If you're using Geyser to allow Bedrock players to join a Java Edition server, RakNet is also deprecated in Geyser. Update Geyser to the latest build and configure it for NetherNet.

See our Geyser + Floodgate setup guide for more details.