DFS - Cannot Create Namespace - RPC Server Is Unavailable windows 2008R2

Hi guys, I am back again with another question

I am trying to create a domain based namespace, enabled Windows 2008 mode and get the following error...\\Miracle-Adventure.com\dfs. The namespace cannot be queried. The RPC server is unavailable.

I have 3 DC's - 2 Virtual DC (windows 2008R2) / 01 DC on a Physical Box Windows 2008R2.  I am trying to create the DFS Namespace in my Physical Box DC01.

Any Idea?