Hi,
I hope you are doing well.
1,Please help check the smsts.log and NetSetup.log to see if there is any further information.
2,In the Official Document of the MDT, the reference is below:
JoinDomain=contoso.com
DomainAdmin=CONTOSO\MDT_JD
DomainAdminPassword=pass@word1
MachineObjectOU=OU=Workstations,OU=Computers,OU=Contoso,DC=contoso,DC=com
It seems that there is no such DomainAdminDomain attribute. Please edit the Custom Settings rule as the Official Document and reimage the devices. Then we could confirm whether it is helpful.
Should you have any questions or concerns, please do feel free to contact me.
Best regards,
Simon
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