Trying to join a Hyper-V host to a VMM 2012 R2 Host Group fails with;
"Agent installation failed copying C:\Program Files\Microsoft System Center 2012\Virtual Machine Manager\agents\Amd64\3.1.6011.0\vmmAgent.msi to \\HyperVHost\ADMIN$\vmmAgent.msi.
The network path was not found."
This was because I forgot to add the VMM Run As account to the Local Administrators group on the target Hyper-V server.
