Yes I’ve done the same, I can see cameras and Nest Thermostat from my
elderly mother-in-law’s house on the same Nest app. This way you only
pay the single Nest Aware subscription that covers all the devices.
I have the same problem, I can not log into the Nest App on the Google
Chromecast Google TV (The white dongle device that plugs into any tv
with a hdmi connection. I have spoken to Nest support and they are
unable to resolve. I am looking for support...