Do I have to open ports in my firewall?
If you have a firewall set up then you need to allow access to UDP port 19132
.
Note
Do you want to use RCON? If so, then TCP port 19132
also needs to be open.
Note
On Windows, you might get a dialog like this when you first start the server. Click “Allow access” to allow PocketMine-MP through the firewall and allow players to connect.
