Article ID: 311354 - View products that this article applies to.
This article was previously published under Q311354
After you have changed the domain that a Windows 2000 domain controller belongs to, you may frequently receive the following event 5781 in the System Event log:
In addition to the Netlogon 5781 Event, you may receive DNS Event 4007 when the DC was previously configured as a DNS server.
Event Type: Warning
Event Source: NETLOGON
Event Category: None
Event ID: 5781
Dynamic registration or deregistration of one or more DNS records failed because no DNS servers are available.
Event Type: Error
Event Source: DNS
Event Category: None
Event ID: 4007
Description: The DNS server was unable to open zone _msdcs.contoso.com in the Active Directory from the application directory partition DomainDnsZones.contoso.com. This DNS server is configured to obtain and use information from the directory for this zone and is unable to load the zone without it. Check that the Active Directory is functioning properly and reload the zone. The event data is the error code For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 0d 00 00 00 .... DC=DomainDNSZones,DC=contoso,DC=com ----------------------------
This issue can be caused by stale entries in the DNS zone for the old domain that the domain controller belonged to. DNS Event 4007 indicates a DNS configuration problem. The DNS server service uses Active Directory to store DNS data, and it encountered a Lightweight Directory Access Protocol (LDAP) error that is associated with this zone. This problem can appear for zones that have a registry reference but that are not stored in the ForestDnsZones or the DomainDnsZones application partition of the new domain.
To resolve this issue:
During the demotion of the domain controller, Dcpromo.exe might not be able to de-register all of the Netlogon service records at the DNS server, which hosts the domain controller's domain.
Article ID: 311354 - Last Review: April 6, 2009 - Revision: 5.0