2003 domain controller

[WARNING] Failed to query SPN registration on DC
acblAsked:
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acblAuthor Commented:
Time server is up
Netlogin is up

Getting random security audits failures  I do believe its DNS
Alessandro ScafariaInfrastructure Premier Field AdministratorCommented:
So...have you checked the PTR record of your DC in your reverse DNS zone and it's correct?

Let us know.....
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Marwan OsmanCommented:
https://support.microsoft.com/en-us/kb/837513

the first resolution method is when it is a DNS issue :

Method 1: Fix Domain Name System (DNS) errors.

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acblAuthor Commented:
Thanks everyone it was corrupted dns
Marwan OsmanCommented:
I mentioned about the DNS error in my previous comment:

mar121mar1212015-03-18 at 17:16:55ID: 40673435
https://support.microsoft.com/en-us/kb/837513

the first resolution method is when it is a DNS issue :

Method 1: Fix Domain Name System (DNS) errors.
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Windows Server 2003

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