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Friends can't connect through the tunnel

Check in order: that the program on your computer is running, that its port and protocol match the tunnel, that your friends enter the address correctly, and that their game version matches.

What to do​

  1. The server is running. If the tunnel's status is "Waiting for service to start", or the app says "The tunnel keeps reconnecting, but no data is passing through it", nothing accepts connections on the port. Start the server and wait until it has fully loaded: the tunnel picks it up by itself, with no need to recreate it.

Since app version 1.3.0

A TCP+UDP tunnel can show "Not answering over TCP" instead of "Waiting for service to start": its TCP side doesn't accept connections, and the app doesn't check UDP.

  1. The port matches. Open the tunnel and compare the port in "Destination address" with the program's port; a Minecraft server keeps it on the server-port line of server.properties. If they differ, put the port from "Destination address" into server-port or your program's settings and restart the program.
  2. The protocol fits. Minecraft: Java Edition works over TCP, Minecraft Bedrock over UDP. If it's the wrong one, delete the tunnel and create a new one: how.
  3. Your friends enter the whole address. The address goes in together with the port after the colon, for example 203.0.113.10:41234. How to enter the address in Minecraft Bedrock is in the Bedrock guide.
  4. The game versions match. Your friends need the same game version as the server.

If that didn't help​

Write to support through "Tech support" in the app menu and say which program it is, its port, the tunnel's protocol and what your friends see when they connect.