SEPM Home Tab "Endpoint Status"

Symantec Endpoint Protection 12.1RU1 Web Console

Under the Home Tab/Endpoint Status, could someone tell me what the Disabled number is pointing to as being disabled (see attached )? I've reviewed the list of systems that is generated by clicking on Disabled and I see nothing on these systems that are any different than a system that is not in this list. SEP on the devices listed as being disabled are communicating with the SEPM and have current policies and signatures.