Unable to Connect to the Synchronisation Service

KB ID 0001649

Problem

I’m doing some work for a client that has Azure AD Sync running, and we keep kicking each other off the server, so I thought I’d login with another account. However, when I tried to open the Synchronisation Service Manager;

Unable to Connect to To Syncronization Service

Unable to connect to the Synchronisation Service

Some possible reasons are:
1) The service is not started.
2) Your account is not a member of the requires security group.

See the Synchronisation Service documentation for details.

Solution

Well it was the second option in my case. Open Server Manager > Tools > Computer Management > System tools > Local Users and groups > Groups > ADSyncAdmins > Add your user in here.

Add AAD Sync Adminisntrator

Related Articles, References, Credits, or External Links

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Author: PeteLong

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