If you've changed your Wi-Fi network (e.g., changed your network name and/or changed your password) either voluntarily or after having switched your gateway box, you'll need to reconnect Link Essential to your Wi-Fi.
First, make sure that Bluetooth is enabled on your phone.
1. From the Somfy Protect app, go to Menu > My equipment > Link Essential >
2. Follow the instructions on the screen to reset the Link Essential.