AD-Connect Error "Unable to install the Synchronization Service. Exception has been thrown by the target of an invocation."

DK_Admin 1 Reputation point
2022-11-01T14:34:04.707+00:00

Hi,

I tried to configure AD-Connect using both the methods. On "Customize", I get error message right after hitting install.
On choosing "Express settings" option, I was able to enter global administrator credentials and also could add on-prem admin credentials further but got error message again on click install at the last step.

Full Error message: "Unable to install the Synchronization Service. Exception has been thrown by the target of an invocation. | The request is not supported.
Please see the application and system event logs for additional details.

What to do next:
No specific information for this failure is available. Examine the log for additional details.
Click retry or re-run this wizard to try the integration again.

Log details:
[10:20:28.521] [ 21] [ERROR] PerformConfigurationPageViewModel: Caught exception while installing synchronization service.
Exception Data (Raw): System.Exception: Unable to install the Synchronization Service. Exception has been thrown by the target of an invocation. | The request is not supported.
Please see the Application and System event logs for additional details. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Runtime.InteropServices.COMException: The request is not supported.

Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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2 answers

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  1. JimmySalian-2011 41,926 Reputation points
    2022-11-01T14:44:33.187+00:00

    Hi,

    Can you check if you have fulfilled the pre-requisites - Azure AD Connect depends on Microsoft PowerShell 5.0 and .NET Framework 4.5.1. You need this version or a later version installed on your server.

    Also confirm and check if TLS1.2 is enabled via the powershell script in this link has all the details. how-to-connect-install-prerequisites

    Hope this helps.
    JS

    ==
    Please Accept the answer if the information helped you. This will help us and others in the community as well.

  2. Amit Singh 4,846 Reputation points
    2022-11-03T10:38:03.887+00:00

    Chances are your account has this membership but not the associated token. The fix is possibly quite simple: Log off and log on again.

    Also, check this MS article - https://learn.microsoft.com/en-us/microsoft-365/troubleshoot/active-directory/exception-with-azure-ad-sync