The 7 FSMO Roles

5 FSMO roles? Oh, no. There are Hidden FSMO roles that they don’t tell you about!  They don’t want you to know about these until you run into a problem!

Have you even been unable to demote a domain controller?  It tells you that it can’t determine the fSMORoleOwner – even though a netdom query FSMO returns all 5 roles?

You may also get: “The Directory service is missing mandatory configuration information, and is unable to determine the ownership of floating single-master operation roles”

Well, there are two hidden roles: CN=Infrastructure,DC=ForestDnsZones  and CN=Infrastructure,DC=DomainDnsZones,DC=

So, the next time you are transferring FSMO roles, you need to move these two as well – before you Decom the old Role Holder!

Run adsi edit as admin.

Right click on ADSI Edit, select Connect to the naming context “DC=DomainDnsZones,DC=yourdomain,DC=tld”

Click and expand the new “Default naming context” – click on the connection point, move to the right column and click Infrastructure:

Right click and select properties or double click to edit.

Scroll to fSMORoleOwner

Double click to edit.

Repeat for naming context “DC=ForestDnsZones,DC=yourdomain,DC=tld”

The fSMORoleOwner in each “Infrastructure” should match.

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