Randomly decides when we are home or away. Needed to turn off presence sensing Thanks for the response, I have rebooted everything multiple times, even did a factory reset and started from scratch. Works for a few days and than either does not recognize when one phone is here or does not realize that both are away. Fails to recognize both an iphone and an android, location setting are correct for each. Currently using the thermostat manually. Searching the web shows that this is not an isolated problem, even ran across suggestions of a class action suit!