Event ID 4520 — DNS Server Active Directory Integration

Updated: November 25, 2009

Applies To: Windows Server 2008 R2

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You can configure the DNS Server service to use Active Directory Domain Services (AD DS) to store zone data. This makes it possible for the DNS server to rely on directory replication, which enhances security, reliability, and ease of administration.

Event Details

Product: Windows Operating System
ID: 4520
Source: Microsoft-Windows-DNS-Server-Service
Version: 6.1
Symbolic Name: DNS_EVENT_ZONE_LIST_RETRY
Message: The DNS server encountered error %1 building the zone list from Active Directory. The DNS server will sleep for %2 seconds and try again. This can be caused by high Active Directory load and may be a transient condition.

Resolve

Check the AD DS load

The DNS Server service encountered a delay while loading a zone from Active Directory Domain Services (AD DS). No further action is required if the DNS server started successfully or the zone loaded successfully. Otherwise, diagnose and correct AD DS problems that are causing an excessively high volume of  operations.

For information about troubleshooting AD DS, see Active Directory Troubleshooting Topics (http://go.microsoft.com/fwlink/?LinkId=95789).

Verify

Ensure that Event IDs 4523 and 4524 are being logged and that no events in the range 4000 to 4019 appear in the Domain Name System (DNS) event log.

Related Management Information

DNS Server Active Directory Integration

DNS Infrastructure

Community Additions

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