Open the Lyric app, select the menu button in the top left corner. Select Thermostat Name for the thermostat that needs to be reconnected to the home Wi-Fi network. Then select Thermostat Configuration and Reset Wi-Fi. On the thermostat display, press and hold the Weather button for approximately five seconds. Highlight Wi-Fi and select OK. Then highlight Setup and select OK. Press GO on the thermostat when instructed within the Lyric app. The app will guide you through the remaining steps.