A smart thermostat dropping its internet connection and going offline is usually triggered by a temporary home router crash, a power interruption, an internet service outage, or a change to your Wi-Fi network password. If your home router experienced a brief electrical glitch or auto-updated its firmware, connected wireless devices will lose their connection and fail to re-establish a handshake automatically. Additionally, if you recently replaced your internet router, changed your Wi-Fi network name, or updated your security password, the thermostat will no longer recognize the network credentials and will go offline. Furthermore, weak signal strength caused by physical distance between the router and the thermostat can cause intermittent drops. You can troubleshoot by restarting your router and updating network settings. You can verify resolution when online status returns.
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