You can reestablish the connection between the Classe 300EOS with Netatmo and your Wi-Fi network from the device screen. Turn on the screen, open the settings menu (wheel at the top left) / Network The Wi-Fi indicator on your Classe 300EOS with Netatmo will flash red until the connection with the Wi-Fi network is reestablished. When the operation is complete, the white Wi-Fi indicator will be solid.