The ecobee tech was correct if you’re using the stock ST connection methods… but he wasn’t totally right for ST overall. Check out the DTH & Smartapps by @StrykerSKS. I use this in combination with ST mode triggers to drive my ecobee. My ecobee mode is manipulated between Home/Away/Sleep based on the mode of ST. Turns off when both phones leave the geofence, turns back on when we return, and goes to sleep when the house does. Been using it for over a year and it works really well!
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