I am looking for a quick way to tell if computers are offline. I have thought about using the Last Connected field but I need something that tells me if it has not connected within a certain amount of minutes instead of after a certain time. Is there a way to do that?
I think you are correct in trying to use the "Last Check-in" inventory item, but the options available for the criteria to filter on are not what you are looking for. You need something like "Last Check-in" "is in the last" x "seconds/minutes/days/months/years". I did log a feature request for this, as FW-19573 and will update this thread when there is progress.