I am having at least a 15 to 20minute delay before ST detects that my mobile is no longer present. This is happening with all mobile devices and I have high accuracy set. My question is, is there a way when my front door contact is triggered to then force ST to refresh all mobile device statuses?
There might be a way to do that. @RBoy has a lock app that I use to switch to the “Goodbye” routine whenever I hit the lock button on the keypad.
Have you checked the size of the geofence area that you have set in your smartthings app settings?
Check out this post on how location is detected. It may provide some pointers.