I set up an IP ping presence for my phones & certain “sometimes on” devices, one of them being my FireTV stick using this: [RELEASE] ASUSWRT Wifi Presence
My TV stick draws power from the TV USB port, meaning that if the TV is off there will be no IP assigned to the device… And voila! Well, as a minimum it tells me the device is off at least, can’t guarantee anything if somebody left it on & left… <children!> Do this as well for my smart TV’s.
J