I am migrating sbs 2003 to Essentials 2012 R2, I've done the prep on the SBS 2003 servers - BPA comes out clean, I do have an error and a couple of warnings in the Microsoft IT analyzer, orphaned nic's and listening on multiple addresses. There are 3 nic's in the machine, 2 are disabled. I've had this at a previous installation and had to remove the WAN miniport adapters that show as hidden devices in device manager which will get rid of these items, however it also disables VPN access so I will do that later.
The problem I'm having is that after I select Add a domain controller to an existing domain, enter the domain administrator login at the next screen it says:
"A domain controller running Windows Serve 2008 or later could not be located in this domain. To install a read-only domain controller, the domain must have a domain controller running Windows Serve 2008 or later."
I don't recall this message on my previous migration, it does look like I can proceed but is there a problem?