From your thermostat’s home screen:
- Go to Menu → Settings → Wi-Fi.
- Turn Wi-Fi ON.
- Select Not Connected.
- Choose your home Wi-Fi network from the list.
- Enter your Wi-Fi password and connect.
Changed your Wi-Fi network or password?
If you’ve recently replaced your router, changed your network name or changed your Wi-Fi password, follow the same steps above to reconnect your S40.

