I currently have two Windows 2012 R2 domain controllers - serverA and serverB. I have two Windows 2019 instances that were promoted to domain controllers with DNS roles - serverC and serverD. I was able to transfer the RID, PDC and Infrastructure roles from serverA to serverC using the operations master gui in AD Users and Groups.
I am trying to transfer the domain naming master from serverB to serverD but when I open Active Directory Domains and Trusts and select operations master the DC I want to use for this role is not listed. I am currently logged in to serverD when I attempt this role transfer which is the DC I want to assign this role to. ServerC is listed but I don't want one domain controller to have all of the roles.
ServerA and ServerB are both running and operational, they are not dead or de-commissioned servers. I'm not seeing any AD related errors when I run dcdiag or errors in the event viewer logs of ServerD. Any thoughts on why ServerD isn't listed as an option to transfer this role to or what I might be doing wrong from my end? Any help is appreciated!
Thanks,