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Replication Issue

Posted on 2011-02-22
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Last Modified: 2012-05-11
Client reports that AD replication between PDC and another DC always fails
with error "Access Denied". When forcing replication using ADSS on the DC, error
"The target principal name is incorrect"; secondly when forcing replication from
PDC console, error is "access is denied"
What needs to be check in this case & should be done to resolve?
A. Reset secure channel with the PDC may fix this issue
B. Check SPN related errors using dcdiag
C. Check DNS related errors using dcdiag
D. Check time difference between 2 domain controllers

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I do not agree with the above to be very clear I do not know SPN related errors, also dns errors canot cause it. I believe that it is d) reason the time difference because if the time difference is not agreeing then the replication cannot be done.
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Question by:kunalclk
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woolnoir earned 250 total points
ID: 34950503
http://support.microsoft.com/kb/288167

followed this one ? specifically the netdom resetpwd part ?
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by:woolnoir
ID: 34950505
Ive seen the situation as you describe above exactly on EE before, and in my environment and the link above fixed it, so its worth a look.
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Expert Comment

by:Sikhumbuzo Ntsada
ID: 34950510
I would say D - when you point a PC\Client to authenticate to the BDC while it has a wrong time you will not be able to log in, thus the time difference is the culprit. After you change the time it will then allow authentication because it is now able to communicate with the PDC.


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by:Krzysztof Pytko
ID: 34950542
I would say A, reset secure channel to PDC :) Access Denied would suggest that there is problem with secure channel

Regards,
Krzysztof
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by:woolnoir
ID: 34950579
Yep, A is the option which my link above fixes - give it a try and let us know.
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by:kunalclk
ID: 34950596
Then why The target principal name is incorrect is the error and what is SPN error. Why the time difference cannot cause it. I have tried it on client server the same error comes acces denied.
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by:Krzysztof Pytko
ID: 34950597
@woolnoir: it's difficult to check because it's a test question from 290 exam :)
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by:woolnoir
ID: 34950599
In that case, i'd pick A :) 100%
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by:woolnoir
ID: 34950601
check the link above, its from a MS knowledge-base article and those derive a lot of the Exam Q's :)
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Assisted Solution

by:Krzysztof Pytko
Krzysztof Pytko earned 250 total points
ID: 34950624
In domain environment all DCs are synchronizing time with forest root PDC, so if time difference is present there is problem with PDC. So, then you know that there is another issue. DNS error would reply with different error messages like cannot contact to <domain name> or something like that.

SPN is related with user rather than DC.

Krzysztof
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Author Closing Comment

by:kunalclk
ID: 34950687
tnx
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