1. Mijia smart plug does not support 5g WiFi; for the time being;
2. The name of 2.WiFi can't be Chinese, can't have special characters and can't be hidden. The encryption method needs to be WPA/WPA2 Personal Edition, and it does not support password-free WiFi connection.
3. The router cannot open the wireless access control or anti-collision network.
4. Reset the socket and reconnect it;
5. If you still can't connect after resetting, you can try to change to another network.