Im am currently trying to install Exchange server 2016 CU6 on a Server 2012R2 machine. The reason i install CU6 is because i want to test the upgrade from CU6 to CU15. For the deployment i used the official Microsoft article: https://docs.microsoft.com/en-us/exchange/plan-and-deploy/plan-and-deploy?view=exchserver-2016
Everything goes wel until step 7. De installation fails with the following error: Unable to set shared config DC.
[03/04/2020 11:05:20.0686]  The following 1 error(s) occurred during task execution:
[03/04/2020 11:05:20.0686]  0. ErrorRecord: Unable to set shared config DC.
[03/04/2020 11:05:20.0686]  0. ErrorRecord: System.Exception: Unable to set shared config DC.
Any idea can cause this error?
I am a member of Domain Admin, Enterprise Admins , Schema admins and orignisation management.