Hello. I just added my first windows server 2012 r2 into my network. I allowed remote connections but can only use the local admin account to connect. It will not accept any domain accounts. I did join the server to the domain. I also added the domain admin accounts to the remote desktop local groups and also the administrators local group. When I try to RDP into it, it does not allow. I can however use the local admin account of the server.
What also is strange. When I use the HP lights out remote console, I am able to login using the domain admin accounts. Looks like it is a remote desktop issue.