I was able to resolve, at least temporarily. I had to remove the
thermostat from my Google account and then re-add it from scratch. This
fixed it for about 3 weeks until the thermostat then displayed a message
that the Wi-Fi password had changed. Whi...
I had to remove the Nest thermostat from my entire account and then add
it back. Been working ever since. Only downside was I had to readd all
the temperature sensors manually.
