I should correct myself. Disabling the NIC would d/c the connection from that computer to the cloud, but it likely wouldn't be seen by the cloud connection as off.
I do have a question as I am probably misunderstanding the question. I suppose it is because we NEVER log off AC, only lock the screen.
Are you referring to logging out of AC, and then logging back in? Not logging off Windows and logging back in. The latter would be unacceptable.