In order to open the StellarMate Control Panel you need to be connected to the same network as your StellarMate.

If StellarMate is in hotspot mode, you can connect to it by going to your computer/laptop WiFi settings and connecting to the SSID stellarmate with the password stellar@mate

Do not open StellarMate Control Panel from StellarMate itself, it is meant to be opened from your computer/laptop.

StellarMate Control Panel is a web application for StellarMate OS. It provides any functions such as displaying the connection status of the controller, backup and restore, network and factory reset, etc.