When you remotely (I mean from another computer on the network) access the device manager of Windows Server 2016/2012/2008, you may get the following error:
Unable to access the computer. Make sure that this computer is on the network, has remote administration enabled, and is running the “Plug and Play” and “Remote registry” services. The error was: Access is denied.
Solution
This happens because this functionality has been removed and you cannot access device manager remotely. Check the following link:
As an alternative, you can try the third party solution.
http://www.nirsoft.net/utils/device_manager_view.html