Cannot install Remote Desktop Services

Hi there,

I created a VM to test out RDS. I installed windows server 2012 R2, put it in the domain, logged in with my domain admin account, used Enable-ServerManagerStandardUserRemoting domain\domain_admin , and tried a simple add roles and features to install a session based RDS. 

I get the error : Online - Cannot get role and feature data .

I haven't found anything related to this on the internet. Its a clean install, why won't it work?

Any ideas?