getting 'RPC server not running' message!

I tried to mange disk of a remote computer, using a custom MMC(by adding compmgmt.msc);
I do get display of its device manager, however if I try to view/manage its disk management I get this message;
Any clues?
Thank you
I do get display of its device manager, however if I try to view/manage its disk management I get this message;
Any clues?
Thank you