An incorrect WiFi password has been entered.
Re-enter the WiFi password.
Tap on Try again.

The Miele domestic appliance could not connect to the WiFi. The Miele app displays the message WiFi connection failed and the fault code 3.1.52.
Re-enter the WiFi password.
Tap on Try again.
Check the WiFi signal strength at the installation site of the domestic appliance.
Check whether your router is working properly.
Check whether another network is available and appropriate. To do this, tap on Choose another WiFi network.
Note: Your mobile device and your Miele domestic appliance must be connected to the same WiFi during pairing.
Cancel the pairing process by tapping the cross at the top left of the app.
Restart your router.
Restart the pairing process via Add appliance.
Use the WPS system connection method if your router supports this method. To do this, tap Add appliance in the app and then tap Use WPS system instead at the bottom.