Hi,
Thank you for posting in Microsoft Q&A forum.
1,Firstly, please check the NetSetup.log on the client to see if there is any error about joining domain.
2,The reference from official article to join domain is below. Please remember to update Deployment Share after the change.
JoinDomain=contoso.com
DomainAdmin=CONTOSO\MDT_JD
DomainAdminPassword=pass@word1
MachineObjectOU=OU=Workstations,OU=Computers,OU=Contoso,DC=contoso,DC=com
Thanks for your time. Have a nice day!
Best regards,
Simon
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