Yeah, I did read something about the time before marked as “away”, but I didn´t notice that close enough cause I was struggling getting the binding to work. When I finally got it to work, I had forgotten all about the “away” time
This is a challenged missing “feature” with WiFi in general, as there is no obvious “check-out” feature. “Check-in” shouldn´t be a problem. You just have to come up with a new WiFi standard, with build-in “check-out” feature, and it will solve everything
As for an “fix”. Maybe you could use the “Last seen” ? If the “last seen” has not been updated within an minute or two, thats probably because the item is “away” in some way? Or perhaps the “uptime”? One or two minutes is stil alot of time not knowing if an item is connected or not, specially if anyone thinking about combine this present state with other things, such as switching on/off house alarm etc… But it´s better than <10 minutes, and give a fixed pattern.