First, I have to say that I am a newbie of both WD DX4000 and Windows Server 2012 R2.
I installed Windows Server 2012 R2 on a WD DX4000 in a workgroup. I disabled the build aministrator account and created a new adminitrator account which was alse enabled for remote desktop control. I used it primarily as a file server for my workgroup and it had been working fine.
In order to solve connection issues with Mac clients, I installed the Windows Server Essential Experience yesterday. The installation promoted the DX4000 as a domain controller. After that the filesharing for the work group stopped working. I then did a forced removal of the domain controller ( https://technet.microsoft.com/en-us/library/jj574104.aspx)) , including creating a new administrator password as prompted. After removing the roles associated with Server Essential Experience and Active Directory, I was followed the prompt and reboot. After rebooting, I tried to connect to the DX4000 using remote desktop control and failed. No matter I used the various workgroup local administrator account(s), the domain account created during the installation of Server Essential Experience, or “machineName/Administrator” in combination with the new password created when demoting the domain controller, I am getting the message of “Your credentials did not work.”
I have about 2TB of shared data are stored on the DX4000. Help and advice to re-gain my acess would be really appreciated. Thanks in advance.