If you have a Windows Server 2008 R2 Core Server or a Hyper-V R2 Server, which is also managed like a Core Server, you are really happy if you can use the Server Manager for this Remote Machine. Basiclly I had the the Remote Setup done. I could connect to the remote Machine with the Server Manager but when I tried to use the Disk Management on a remote Server and I got the following error “RPC server is unavailable”. After checking it I found the solution. The Problem is that the Firewall blocks the remote communication to virtual disk service. So you have to open the Firewall on the Management Machine
- First make sure you activated all the Remote Management options on the Remote Machine. I had all done this but its good to check that.
- Now you can run the following Command in cmd on the Management Machine to add the a new firewall rule
netsh advfirewall firewall set rule group="Remote Volume Management" new enable=yes