Azure AD Join is failing with CAAA2000C

Trevor Hopkins 0 Reputation points

I have a problem joining my Windows 10 laptop to my AAD domain. AAD Domain join results in an "oops something went wrong - error caaa2000c. AAD audit logs show the device as being successfully registered, immediately followed by successfully unregistered. I am a Global Admin.

The device was originally Hybrid-Joined although AD has now been decommissioned. I have removed the device from both Intune and Azure AD but this has not resolved the problem. The Device was originally registered for AutoPilot but I have also removed this registration to try and resolve this issue. I have also turned off MFA temporarily on my user account as the local device logs indicate a "user interaction required" issue.

Have ran the enrollment troubleshooter tool and this reports everything is in order for a Domain Join to happen. I've also tried dsregcmd /leave force and dsregcmd /join force, which hasn't worked either.

I don;t know what else to do - I have googled the hell of this issue and tried everything I have come across!

Azure Active Directory
Azure Active Directory
An Azure enterprise identity service that provides single sign-on and multi-factor authentication.
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  1. JimmySalian-2011 30,151 Reputation points


    Do you get any error codes?0x8xxx something? Can you export the logs from the Windows 10 device and upload here or onedrive from the device - User Device Registration. logs in the event logs.

  2. Givary-MSFT 13,471 Reputation points Microsoft Employee

    @Trevor Hopkins I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to "Accept " the answer.

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