I have about 10 or 12 unnamed devices appearing in my console. Some of them show online and some are offline. They all appear to have a 9 digit TV ID. I do not see any option to connect to them so I have no idea what these computers are.
I have a hardware and software inventory systems that lets me extract the TeamViewer ID of all my computers that I manage. I have been able to linke 2 of the 12 back to computers that use the full TV install to manage my console, but I still have 10 listed that I cannot trace back to computers I manage.