Entra Connect Sync - Installation Error

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Entra Connect Sync - Installation Error

Willem Herholdt 20

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Akhilesh Vallamkonda 14,805 Reputation points Microsoft External Staff Moderator

2025-05-07T13:54:24.8533333+00:00

Hi @Willem Herholdt
May I know are you getting this error, is this cause when you are trying to upgrade the Entra connect tool or when installing the applications.
May I know the server using is domain-joined?
Check the .NET Framework version it required 4.6.2, or later newer versions.
verify the credentials you used to connect the directories. are you using the existing AD account or you are creating a new AD connecter account?
TLS 1.2 must enable for Microsoft Entra Connect, if not follow how to enable TLS 1.2 on the site servers and remote site systems
Please check all the Prerequisites for Microsoft Entra Connect Before you install Microsoft Entra Connect.

Hope this helps. If you still do not see enough information to isolate the issue, please let me know in the comment section.
Willem Herholdt 20 Reputation points

2025-05-07T14:19:17.6866667+00:00

Hi @Akhilesh Vallamkonda

I have uninstalled Entra Connect because it stopped syncing password hash.

Its a Server 2019 Std and its domain joined.

.NET Framwork is on 4.8

I am Creating a new user.

TLS 1.2 is enabled.
Willem Herholdt 20 Reputation points

2025-05-07T15:08:34.7766667+00:00

Thanks, that sorted out the issue.

Accepted answer

1 additional answer

Your answer

Akhilesh Vallamkonda 14,805 Reputation points Microsoft External Staff Moderator

2025-05-07T13:54:24.8533333+00:00

Hi @Willem Herholdt
May I know are you getting this error, is this cause when you are trying to upgrade the Entra connect tool or when installing the applications.
May I know the server using is domain-joined?
Check the .NET Framework version it required 4.6.2, or later newer versions.
verify the credentials you used to connect the directories. are you using the existing AD account or you are creating a new AD connecter account?
TLS 1.2 must enable for Microsoft Entra Connect, if not follow how to enable TLS 1.2 on the site servers and remote site systems
Please check all the Prerequisites for Microsoft Entra Connect Before you install Microsoft Entra Connect.

Hope this helps. If you still do not see enough information to isolate the issue, please let me know in the comment section.
Willem Herholdt 20 Reputation points

2025-05-07T14:19:17.6866667+00:00

Hi @Akhilesh Vallamkonda

I have uninstalled Entra Connect because it stopped syncing password hash.

Its a Server 2019 Std and its domain joined.

.NET Framwork is on 4.8

I am Creating a new user.

TLS 1.2 is enabled.
Willem Herholdt 20 Reputation points

2025-05-07T15:08:34.7766667+00:00

Thanks, that sorted out the issue.

Answer 1

Akhilesh Vallamkonda 14,805 Microsoft External Staff Moderator

Hi @Willem Herholdt

In you AD search for the username like MSol_d3exxxxx reset the password for this account and when you are trying to connect the directories use this account as an existing account.
Also, in services search for the Microsoft Azure AD sync or Microsoft Entra ID sync and see the status is running if not try to restart the services and start reinstalling again.

If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

Akhilesh Vallamkonda 14,805 Reputation points Microsoft External Staff Moderator

2025-05-07T15:45:16.0466667+00:00

@Willem Herholdt
Thanks for the reply! I'm glad to hear you were able to pinpoint the issue and get things working.

If this helped solve your issue, please click "Accept Answer" and mark it as helpful.

Answer 2

Willem Herholdt 20

In you AD search for the username like MSol_d3exxxxx reset the password for this account and when you are trying to connect the directories use this account as an existing account. Also, in services search for the Microsoft Azure AD sync or Microsoft Entra ID sync and see the status is running if not try to restart the services and start reinstalling again.

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Entra Connect Sync - Installation Error

1 additional answer

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