To perform a "Test", ensure that your Mobile Phone and the Smoke + Carbon Monoxide Alarm with smart features are on the same network.

If you are on the same network and still facing this issue, please note that the device will take about 5-10 seconds to sync the network details. It is suggested to wait for 5-10 seconds after the network switches (from 4G to Home Wi-Fi Connection) before testing the Smoke + Carbon Monoxide Alarm with smart features.