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Certificate Services client auto-enrollment Event ID 6

Posted on 2013-12-11
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Last Modified: 2013-12-23
This is a RODC MS Standard 2008 R2 server.
The error:
Automatic certificate enrollment for domain\user failed (0x8007003a) The specified server cannot perform the requested operation.
This is different than the Event ID 6 for RPC availability.

I have checked the certs and they appear fine but not sure if I am missing something.

Any help would be great because it is the RODC in my DMZ so many services outside rely on it for auth.

Kry
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Question by:kryanC
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Expert Comment

by:Mahesh
ID: 39712248
For auto-enrollment check that the certificate template is used by a CA and that the CA service is running on this machine and reachable via RPC
Just telnet CA server from RODC on TCP 135 and check if it succeed ?
Also ensure that High TCP ports are opened from RODC to CA server (1024-656535 or 49152-65535 if CA server is 2008 and above)

http://support.microsoft.com/kb/832017#method4

Mahesh
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Author Comment

by:kryanC
ID: 39724105
Thanks, telnet was good and ports are opened. Not sure but thought about deleting 509 certs in registry. Thoughts?

Kry
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Accepted Solution

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Mahesh earned 500 total points
ID: 39725828
Not sure why you require certificate on RODC ?

Anyways, you can directly delete certificate from Certificate Personnel store on RODC

Also you can request certificate for user manually through Certificate MMC console \ personnel certificates on RODC

Just ensure that you have root ca certificate installed on RODC in Trusted root certification authorities

Mahesh
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Author Closing Comment

by:kryanC
ID: 39736336
Thanks that has cleared up the issues.
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