Windows 2012R2 RDS Connection collection disappeared

Hi,

Got a fairly basic installation consisting of two servers: a DC (running 2012 R2) and a RDS (running 2012R2). The system is in production for about 2 months now. I recently noticed when trying to offer user support through session shadowing on the RDS server that the connection collection has disappeared.

I used to go to Server Manager > Remote Desktop Services and there I had a connection collection from which I was able to pickup a user and shadowing the session.

This collection has disappeared. When I go to Server Manager > Remote Desktop Services > Overview I do get the following message "A Remote Desktop Services deployment does not exist in the server pool. To create a deployment, run the Add Roles and Features Wizard and select the Remote Desktop Services installation option".

Strange, since it has been done ? Anyway, trying to run the wizard: on the top of the "Deployment Type" window, I read "A Remote Desktop Services Deployment already exist in the server pool"! Whatever option I chose, when clicking  on next the following message appears: "Could not retrieve the deployment information from the RD connection Broker server <local servername>.

The connection broker service is running. Restarting it does not solve the issue. Nothing relevant shows up in the event viewer.

I can't tell for sure when the issue appeared. The last maintenance actions that took place recently were the installation of Windows updates and the removal of an older, disconnected DC (NTDSUtil - Metadata cleanup).

Any help would be appreciated.
xmiAsked:
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xmiConnect With a Mentor Author Commented:
After rechecking everything we found an incorrect entry in the DNS servers used by the 2012 DC. The entry was related to the server that had been cleaned up using ntdsutil. Rebooted both server and the collection is back.
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