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If you can’t activate Matter on your tado° X device or connect your tado° X device to another Matter app, follow the section that matches your situation.
1. If you get a Matter could not be activated error message
Try the following steps:
Check your Wi-Fi connection
Make sure your smartphone and tado° X devices are connected to the same Wi-Fi network.
Disconnect your VPN
If you use a VPN (Virtual Private Network) on your smartphone, disconnect it and try activating Matter again.
Check your home network
Make sure your home network supports Matter communication between your devices.
Move your Bridge X closer
If you use a Bridge X, move it closer to your router and your other tado° X devices to ensure a strong and stable connection.
Restart your smartphone and Wi-Fi router
Restart your smartphone: a simple restart can fix temporary issues with your smartphone or the tado° app. Then, try connecting the devices again.
Restart your Wi-Fi router: this can help fix network stability issues that may prevent proper device connection.
2. If the Connect another app button is disabled or the Matter connection fails
If the Connect another app button is disabled in the tado° app or the Matter connection fails, you won’t be able to connect your tado° device to another Matter app. This can happen due to app, device, or network issues.
The Connect another app button may also become unavailable if you:
Reinstalled the tado° app.
Cleared the app’s storage on an Android smartphone.
Had an issue while installing the tado° X device.
Are using a different smartphone from the one used for the original installation.
Your tado° X device may still appear as connected in the tado° app, and you can continue controlling it there.
How can I restore the Connect another app button and Matter connection?
If the Connect another app button remains disabled or the Matter connection fails, reinstall the affected tado° X device:
Factory reset the tado° X device you want to connect.
In the tado° app, go to Settings > Rooms & Devices > Add Device.
Add the tado° X device again.
Try connecting it to another Matter app again.