Unable to join machines to the domain. Error Message “The Specified User already exists”

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Unable to join machines to the domain. Error Message “The Specified User already exists”

You are trying to join a computer to the Active Directory domain and getting a below error:

Unable to join a computer to a domain. Error Message “The Specified User already exists”

Error Description: Unable to join machines to the domain. Error Message “The Specified User already exists”

PROBLEM DESCRIPTION :

>>We were not able to join the machines  to the domain .

>>We were getting the following error message:

“The Specified User already exists”

>>In the AD Users and Computers we were not able to “Find” any such account in the entire directory as the disabled accounts existed in a Non Built-in container.

 

Resolution:

assuming FQDN= abc.xyz.ad

>>We took the LDIFDE dump for the entire domain partition using the command:

ldifde -f out.txt -d “dc=abc,dc=xyz,dc=ad” 

 

>>We now found that there were multiple disabled accounts present under a Non Built-in container in the AD.

 

>>We deleted the machine accounts from the AD container and then forced the replication using the command:

 

repadmin /syncall /AeP

 

>>We now successfully joined all the machines to the domain.

>>The issue is resolved.

 

Following are the links for your future reference:

 

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http://support.microsoft.com/kb/237677

 

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