Azure AD Connect Synchronization service is not running

Question

Azure AD Connect Synchronization service is not running

Florian Ahmeti 20

We had Azure Ad Connect running smoothly until now.
All of a sudden Synchronization service is not running.

All the services were running on my on-prem device but it keeps showing me that it is not running or the user account has no access... but not in this case.
I tried to uninstall and install the latest version release date of 21/02/2024.
Also tried to clear the registry for any remaining files but keeps showing me that the Synchronization service is not running.

Now after many tries it is a different story " It appears that you are resuming a scenario that was not completed previously during installation".

Florian Ahmeti 20 Reputation points

2024-02-26T22:59:31.3433333+00:00

Back to the same issue as in the beginning.
the on-premises synchronization service is not able to connect to azure active directory updating the proxy settings for the adsync service account may resolve this issue. ( No proxy- so it may but no ) Azure endpoint Https://login.microsoftonline.com*domain* adsync service account domain\adsyncmsa***** extended message synchronization service is not running
Akhilesh Vallamkonda 15,320 Reputation points Microsoft External Staff Moderator

2024-02-28T11:53:26.3533333+00:00

Hi @Florian Ahmeti

The error message " It appears that you are resuming a scenario that was not completed previously during installation" typically occurs when you attempt to reinstall Azure AD Connect without completing the previous installation or configuration.

Please ensure that you complete or properly terminate any previous installation or configuration attempts before proceeding with a new installation.

The other side synchronization service is not able to connect to azure active directory please run the Delta sync Start-ADSyncSyncCycle -PolicyType Delta and full sync Start-ADSyncSyncCycle -PolicyType Initial after successful completion of sync please share all the error screen which you see in the synchronization service and AD& Azure Active Directory connecters status.
Florian Ahmeti 20 Reputation points

2024-02-28T14:45:31.5033333+00:00
Hi, thanks for your reply.
I tried to install the latest version on a different device winsrv2016 joined on domain and we received the same error message at the end.

also tried to install the old version that was working fine, we had the setup file. But the same error.

error from:
PS C:\Windows\system32> ADSyncSyncCycle -PolicyType Delta ADSyncSyncCycle : The term 'ADSyncSyncCycle' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1

ADSyncSyncCycle -PolicyType Delta

+ CategoryInfo : ObjectNotFound: (ADSyncSyncCycle:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
Florian Ahmeti 20 Reputation points

2024-02-28T15:17:35.2033333+00:00
This is happening in the end after every install we are trying to do.

PS error from Delta

PS C:\Windows\system32> ADSyncSyncCycle -PolicyType Delta ADSyncSyncCycle : The term 'ADSyncSyncCycle' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1

ADSyncSyncCycle -PolicyType Delta

+ CategoryInfo : ObjectNotFound: (ADSyncSyncCycle:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
Florian Ahmeti 20 Reputation points

2024-02-29T14:24:27.38+00:00

Installing .Net 4.8.1 fixed the issue.
on Microsoft Learn says .NET runtime requirement has been increased to 4.7.1.

Accepted answer

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Your answer

Florian Ahmeti 20 Reputation points

2024-02-26T22:59:31.3433333+00:00

Back to the same issue as in the beginning.
the on-premises synchronization service is not able to connect to azure active directory updating the proxy settings for the adsync service account may resolve this issue. ( No proxy- so it may but no ) Azure endpoint Https://login.microsoftonline.com*domain* adsync service account domain\adsyncmsa***** extended message synchronization service is not running
Akhilesh Vallamkonda 15,320 Reputation points Microsoft External Staff Moderator

2024-02-28T11:53:26.3533333+00:00

Hi @Florian Ahmeti

The error message " It appears that you are resuming a scenario that was not completed previously during installation" typically occurs when you attempt to reinstall Azure AD Connect without completing the previous installation or configuration.

Please ensure that you complete or properly terminate any previous installation or configuration attempts before proceeding with a new installation.

The other side synchronization service is not able to connect to azure active directory please run the Delta sync Start-ADSyncSyncCycle -PolicyType Delta and full sync Start-ADSyncSyncCycle -PolicyType Initial after successful completion of sync please share all the error screen which you see in the synchronization service and AD& Azure Active Directory connecters status.
Florian Ahmeti 20 Reputation points

2024-02-28T14:45:31.5033333+00:00

Hi, thanks for your reply.
I tried to install the latest version on a different device winsrv2016 joined on domain and we received the same error message at the end.

also tried to install the old version that was working fine, we had the setup file. But the same error.

error from:
PS C:\Windows\system32> ADSyncSyncCycle -PolicyType Delta ADSyncSyncCycle : The term 'ADSyncSyncCycle' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1

ADSyncSyncCycle -PolicyType Delta

+ CategoryInfo : ObjectNotFound: (ADSyncSyncCycle:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
Florian Ahmeti 20 Reputation points

2024-02-28T15:17:35.2033333+00:00

This is happening in the end after every install we are trying to do.

PS error from Delta

PS C:\Windows\system32> ADSyncSyncCycle -PolicyType Delta ADSyncSyncCycle : The term 'ADSyncSyncCycle' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1

ADSyncSyncCycle -PolicyType Delta

+ CategoryInfo : ObjectNotFound: (ADSyncSyncCycle:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
Florian Ahmeti 20 Reputation points

2024-02-29T14:24:27.38+00:00

Installing .Net 4.8.1 fixed the issue.
on Microsoft Learn says .NET runtime requirement has been increased to 4.7.1.

Answer 1

Hi @Florian Ahmeti

I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to "Accept " the answer.

Issue:

After reinstalling the Entra connect you are getting the error "It appears that you are resuming a scenario that was not completed previously during installation" and "Azure Service Connectivity Failed, Unable to proceed The on-premises synchronization service is not able to connect to Azure Active Directory. Updating the proxy settings for the ADSync service account may resolve this issue, mote about troubleshooting Azure AO Connectivity issues."

Solution:

By Installing .Net 4.8.1 has fixe the issue as, .NET runtime requirement has been increased to 4.7.1.

Thanks,
Akhilesh.

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

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Azure AD Connect Synchronization service is not running

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