I've got good connectivity, wifi works well everywhere, the nest is online and the app is working as evidenced by the outdoor temp & weather reading on the app. Up until this afternoon I was able to set the thermostat on the app and it suddenly lost that ability for no apparent reason. This is the 2nd time it's happened and after the first fail it was only able to be set manually for several months and then it suddenly started working on it's own, meaning that the app suddenly allowed for remote setting of the thermostat again. I've reset everything, removed and reinstalled the Nest app, all to no avail. I'm starting to regret owning this thing. Great when it works but extremely frustrating when it doesn't.
