If your home Wi-Fi network is visible in the Lyric app and you have provided the correct Wi-Fi network information, but your thermostat has not connected to your in-home Wi-Fi, you may need to troubleshoot your Wi-Fi network. First, confirm that your router is using a supported security standard. Lyric works with the following security standards:
Second, confirm that your Wi-Fi network is compatible. All Honeywell Wi-Fi thermostats, including the Lyric thermostat, are compatible with the 2.4 GHz B, G and Mixed Wi-Fi networks. Third, some routers are incompatible with the Lyric thermostat's low-power features. To see a list of compatible routers, visit here. Note that this is not an exhaustive list of compatible routers.