Why Is the Ecobee Not Connecti

Wondering Why Is the Ecobee Not Connecting To WiFi​? It may occur due to an unstable internet connection, ISP outages, or connectivity issues with the router or extender. Restart your thermostat and router, and update the firmware to fix this. Even if the connection is not established, reboot your Ecobee device. To reboot, remove it from the wall and leave it off for a few seconds. This will restart your thermostat and fix the issue.

https://ecobeelog.com/resolving-the-ecobee-not-connecting-to-wifi-error/