Add Windows 2008 Terminal Server to RWW/RWA

I would like to add our Windows 2008 Terminal Server (not R2) to RWW in Windows 2012R2 Essentials.  The connect computer wizard did not work on the Windows 2008 server, returning Win32 error.  

How do I add the 2008 TS to the devices listing in RWW without using the connector wizard (as it does not work).   The Windows 2008 server has been join to the same domain manually.