I have a 2008 Server R2 I recently installed. I set up 5 users on RDP services, no domain, just a workgroup, they connect over with a username/password to access a software package. This worked fine.
I then wanted to set up the RDP web access, which needed RDP Session Broker, which required Active Directory and IIS. So, I installed Active Directory, DNS, etc. Then I installed the rest of the RDP services that wouldn't install, and followed a simple guide to set up the RDP web access. That works fine, however, now that the domain is implemented (local machines are NOT in domain, they are still just workgroup PCs logging in via RDP), I can no longer print to redirected printers. I'm assuming this is some kind of permissions issue as it was working flawlessly before installing active directory.
The printers show up fine in the "Devices and Printers" section, but when you print, it doesn't go anywhere, or show anything in the queue.