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

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:

 

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

 

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