Method 1:  Teampel server uses port mapping, maaping the port used by Teampel on the router to Teampel Server in the local area network. When the external network client signs in, the server address fills in the router IP address to sign in. If the router does not have a fixed IP, you can apply for a dynamic domain name.

Method 2: Users outside the local area network can also connect to Teampel Server in the local area network through the VPN (Virtual Private Network) and then sign in to Teampel Server in the local area network.