Why can't access the Xiaomi Router using the external IP even though port forwarding is successfully set up within the local network?

Question

Accepted Answer

If port forwarding is successfully set up, you can access the Xiaomi Router normally from the external network using the external IP address and port number, and you can also access it within the local network using the internal port and local IP address. However, if you're unable to access it from within the local network using the external IP address and port number or the connection is slow or fails, this is a normal issue related to loopback access. This testing method is unconventional, and the router does not support loopback functionality. To test external access at home, you can try accessing the external IP address with the external port number using your mobile data network.