I have a 3rd generation thermostat that I recently installed to replace a 2nd generation that I thought was the problem. It wasn't. The thermostat connects to my Wi-Fi just fine, NEVER shows an issue with connectivity, and reads the configuration set by the app just fine. However, it still continues to show in the mobile apps that it is offline sporadically, and now, the mobile apps (both iPhone and Android) show that the thermostat is cooling, even though it's on HEAT ONLY, and both the thermostat itself and the web page show correctly. I have tried reinstalling the app but that has not changed anything. It still shows on mobile that the HVAC is cooling, even though both the thermostat itself and the home.nest.com web page show it doing what it actually is doing, whether that is nothing, just circulating air with the fan, or actually heating. Any suggestions besides replacement? The app seems to work fine with the upstair Nest thermostat, though it too randomly shows as offline, even though the web app and thermostat itself do not.
