Solving a stubborn Wi-Fi connection problem on a smart thermostat requires a methodical approach that addresses router configuration and device memory. Start by restarting your home internet router and modem to clear temporary routing bugs and refresh IP address assignments. Next, verify that your router is broadcasting a 2.4 GHz frequency band, as most smart thermostats lack 5 GHz receiver chips. Move closer to the unit or check for heavy physical obstructions like concrete walls that weaken signal strength. If connection still fails, navigate to the thermostat network menu, forget the existing network profile, and carefully re-enter your Wi-Fi password to eliminate authentication errors. You can troubleshoot further by performing a hardware reboot on the thermostat by removing its faceplate for one minute. You can verify success when the network status indicator displays solid and connected.
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