When attempting to connect to domain controller in Windows Server 2019 the following error comes up "The join operation was not successful. This could be because existing computer account having name was previously created using different set of credentials."
I have attempted renaming the computer and connecting and also tried deleting it from the domain controller to be able to add it back but both did not resolve the issue. Any suggestions workarounds are appreciated.
63 Answers
When entering your credentials, enter them as follows:
domain\adminaccount.
and of course, you will replaced "domain" with your domain name and then \ and then your admin account
Try to join the computer to the domain under a domain user account that is a member of Domain Admins group. We had the same case and it helped
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