Which attribute determines away or home?

[jatgm1]

Which attribute would one use to determine if a device is home or away? I tried manually entering "place" and simply leaving the attribute field blank. I tried using source, scanner, and family name, the only three options given. None work. The entity does say either away or home but won't trigger anything.

[jatgm1]

Unless I leave everything blank. Which case it will trigger if it either connects or disconnects.

[jatgm1]

Ya I've tried everything and can't figure it out. I have a tp link c50 router which seems to work, as it displays when the device is connected or not connected but doesn't allow me to use it as a trigger. I posted on the home assistant forum but this seems like a niche thing, and no one has answered. I'm guessing it's not something people often use. Seems super useful. Unfortunate it doesn't actually work as a trigger.