I am facing an issue in our organization. One of our user in the organization has changed the settings such that I cannot ping the system. Similarly I can't even access the system through remote registry option or through Computer Management-->Connect to a Remote Computer. I am getting the error message "Computer_Name cannot be managed. The Network path was not found." I have the Domian Admin rights but I am unable to get information about this system. I have checked the windows firewall setting on his computer by asking him to show me the firewall settings but there is no such configuration that can prevent the form accessing the system.
Can you please help me out what could be the possible reason for this?? And how I can caputer this user if he deliberately performed such configurations (which I believe he did)