We have been having big problems with our RDS 2012 R2 deployment. So much so, that i have removed the RDS servers, removed the collections, uninstalled RDS roles, disjoined from the domain and then deleted the hyper-v vm's. Then reinstalled 2012 R2 and then deployed RDS. Only to have the EXACT same problem!! Does RDS 2012 R2 put anything in AD besides the computer objects?