Cannot Recreate Azure AD ‘Local’ AD Connector

KB ID 0001659


While trying to fix another Azure AD Replication problem today I managed to delete one of the connectors (the one for the local ‘on-prem’ Active Directory). In an effort to ‘recreate’ it, I ran the ‘Microsoft Azure Active Directory Connect’ and went to ‘Customise the Synchronisation Options’. ¬†Unfortunately I got this error;

Cannot Recreate AD Connector

The forest {forest-name} cannot be added because the attribute used to uniquely identify your users in Azure AD (mS-DS-ConsistencyGuid) is already in use.

Thats not good! I was starting to get concerned.


There was, (on the old DirSync,) an install flag that would skip this step, would it still work? Yes it does, this time the wizard will complete, recreate the connector correctly and everything will work without any carnage! So what’s the command? See Below;

cd "C:\Program Files\Microsoft Azure Active Directory Connect"
AzureADConnect.exe /SkipLdapSearch 

SkipLDAPSearch AADConnect.

By the time I checked the Synchronisation service, everything has burst back into life, and all was well.

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Author: PeteLong

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