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Exchange 2016 installation fails; Unable to set shared config DC

Hi All,

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] [1] The following 1 error(s) occurred during task execution:
[03/04/2020 11:05:20.0686] [1] 0.  ErrorRecord: Unable to set shared config DC.
[03/04/2020 11:05:20.0686] [1] 0.  ErrorRecord: System.Exception: Unable to set shared config DC.

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Any idea can cause this error?

I am a member of Domain Admin, Enterprise Admins , Schema admins and orignisation management.
ExchangeInstallation

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Last Comment
Saif Shaikh

8/22/2022 - Mon
M A

Are you installing with same name of the current server?
If yes please try changing to a different name.

I suggest you to install new OS with new name and run this command first.
Setup /PrepareAD /IAcceptExchangeServerLicenseTerms

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You need Exchange media for this command.
Can

ASKER
Hi Mas,

There is no current exchange server in the environment i am installing exchange. A few years back there was a exchange server with the same server name. But i've cleaned all old data with adsi edit. Meanwhile, in eventviewer is see more errors:

Process Microsoft.Exchange.Directory.TopologyService.exe (PID=4940). The Exchange computer DC1.contoso.com does not have Audit Security Privilege on the domain controller DC1.Contoso.com

It says the exchange computer "domain controller"  lol ?
M A

Did you try to run?
Setup /PrepareAD /IAcceptExchangeServerLicenseTerms

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Did you try after enabling IPv6.
Did you try from a new VM with new OS?
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
William Peck
Saif Shaikh

It guides us to add a parameter MinSuitableServer with value 1 in Microsoft.Exchange.Directory.TopologyService.exe.config File.

Besides, sometimes a strict GPO may cause this issue. Here are some examples:

Exchange 2016 Setup: Unable to set shared config DC
https://www.torivar.com/2017/02/15/exchange-2016-setup-unable-to-set-shared-config-dc/

An exception ocurred while setting shared config DC
https://thejespernilsson.wordpress.com/2017/01/14/an-exception-ocurred-while-setting-shared-config-dc/
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