Hi I am setting up SCCM 2012 on VM hosts, my setup is as follows: 
  
SQL Server 2012 running on WIn 2012VMware  Cumulative update 6 applied 
  
SCCM Config Manager running on Win 2012r2, .net 3.5 sp1 and .net 4 
  
I have SQL installed and running, but whenever I try to install SCCM and attach it to the SQL server i get an error: 
  
  
  
The RPC server is unavailable. (Exception from HRESULT: 0x800706BA) 
  
I can't seem to get past this issue, any help gratefully received  
  
Cheers  
  
Paddy