DHCP error 1035 & 1036

I have 2 windows server 2008R2 domain controllers.  in addition to the AD tasks, they are DNS and DHCP servers.  Every time the server boots or I restart DHCP, I get 2 error events:

1035:  The DHCP service was unable to create or lookup the DHCP Users local group on this computer.  The error code is in the data.
1036:  The DHCP server was unable to create or lookup the DHCP Administrators local group on this computer.  The error code is in the data.

The DHCP service seems to run properly.  I believe that since these servers are DCs, there are no local groups to be found, and thus the errors...

So, the questions:  
Is this a big problem?
Is there a workaround/fix?
Is it a best practice to run DHCP on domain member servers? (this is a small network, so there are no resource worries).


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Darius GhassemCommented:
The reason is this is looking for the local users and groups which is disabled when you install the AD role.
Paul_OlsonAuthor Commented:
Thanks for the reply - I understand that.   Is there a way to resolve the error, or is it a 'don't care'?
Darius GhassemCommented:
Create the DHCP Users and DHCP Administrators groups in AD.

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A little extra thing:

If your Windows Server 2008R2 is installed on another language than English, then the server it self on installation has created the two groups in the AD, but on the local language. Just rename the two groups in AD from the local language names to the english names - Then the errors disappears on the reboot
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Windows Server 2008

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