After adding the Internet Bridge to an Apple Home, or a new tado° device to an existing system, it may take up to 40 minutes before the device shows up in the Apple Home app.
If a tado° device still does not show, or is marked on the Apple Home app with “No response” or “Unavailable”, try the following:
Ensure that your Internet Bridge is connected to the router and powered, and that the ‘Router’ LED is solid.
Make sure your iPhone or iPad is connected to the same router as the Internet Bridge.
Close the Apple Home app by swiping up, then open it again.
Turn off Wi-Fi on your iOS device for 30 seconds and then re-connect to the Wi-Fi.