If you’ve changed your router or are having trouble connecting the Smart AC Control V3+ to your Wi-Fi network, please do the following:
Please delete the existing Wi-Fi credentials as explained in this article.
When the display of your Smart AC Control V3+ shows the unique 4-digit code, go to Settings in the tado° app.
Go to the settings of the room in which the Smart AC Control V3+ is located.
Go to Update Wi-Fi Settings and follow the instructions in the app.
If the Smart AC Control V3+ fails to join the Wi-Fi network, try to reconfigure the Wi-Fi settings of your Smart AC Control V3+ as explained in the articles given below: