If the wifi LED on your Connected Indoor Unit is flashing, this means that there are problems connecting to the WiFi: The WiFi on the EASYKIT Wifi With Netatmo is activated but is not connected to your WiFi network Check that your modem is powered. Has someone changed an access password on your home WiFi network? See the FAQ "How do I reset the WiFi network on my EASYKIT Wifi With Netatmo?"