Greetings fellow admins,
History,
I recently installed Windows HyperV 2012 on HPZ600 Joined the existing windows Active Directory domain, add the computer on to my Debian DNS Server. No Errors.
I Installed a Windows Server 2012R2 to Manage the HyperV on VMware player.
I have Installed the HyperV Manager in my VM Server
Problem
When I try to connect to the HyperV server from the Server2012, I get the attached error. 
Which is "Check that Virtual Machine Management service is running … etc"
Any help would be appreciated greatly.
Best Answer
Sounds like you dont have the required permissions to connect to Hyper-V. To quickly check it out, you can create 2 identical accounts with admin privileges on both client VM and Hyper-V and try again. Though I think it could also be because of firewall rules. Try to disable firewall on hypervisor node.