Good morning from a nice and sunny Manchester!! With the release of Server 2012 I have decided to upgrade everything I can in my lab to Server 2012 so I can get some experience with it. As part of my lab I run SCVMM 2012 for Citrix XenDesktop 5.6. When I attempted to add the Server 2012 host with Hyper-V 3.0 Enabled it threw up the following error:
Error 12704: Unable to connect to the Hyper-v service on the server SERVERNAME
Recommended Action: Ensure that the Hyper-V services (vmms, nvspwmi, or vhdsv) and the Virtual Machine Manager Agent are installed and running on the server SERVERNAME.
Now I know for sure that Hyper-V is up and running OK. It appears that SCVMM 2012 RTM is not supported under Server 2012. The support is coming under SP1. Luckily though you can download the CTP2 of SCVMM 2012 SP1 from the following location and that will get past the problem