Check on your smartphone that the Home + Security app notifications are enabled Note: Some Android manufacturers limit the running of apps in the background to extend battery life. This may prevent you from receiving notifications from the Home + Security app For example, you can find the procedures on this link https://dontkillmyapp.com/ (Legrand Netatmo Bticino is not responsible for the content of this page) A poor Wi-Fi signal can also cause notification issues.