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JSI Tip 3124. DDNS problems causes Netlogon events 5774, 5775, and 5781 on your domain controller?

The Netlogon service on a Windows 2000 domain controller will log one or more of these System events if it does NOT receive a 'success' message from the DNS server that owns the zone of the record that is being registered/deregistered.

The event log may contain:

   Netlogon 5774 - Registration of the DNS record <record_name_and_dns_info> failed.

   Netlogon 5775 - Deregistration of the DNS record <record_name_and_dns_info> failed.

   Netlogon 5781 - Dynamic registration or deregistration of one or more DNS records failed.
The Netlogon service performs DDNS registrations and deregistrations when the service starts, at regular intervals theeafter, and when the service stops.

NOTE: See tip 2408 ยป How do I Enable/Disable Windows 2000 Dynamic DNS registrations?.

Possible reasons for NOT receiving a 'success' message are:

Domain controller configuration: DNS server entries in the TCP/IP properties of the
                                 domain controller are not properly configured.

Connectivity:                    This domain controller does not have IP, or TCP/UDP
                                 connectivity to the DNS servers that own the zones
                                 to which records need to be registered or deregistered.

DNS server configuration:        The DNS server cannot accept dynamic updates or is
                                 not configured to accept dynamic updates. If the DNS
                                 server that is used by the DC is not authoritative
                                 for the zones to which the Netlogon service is 
                                 attempting to register or deregister, the DNS server
                                 must be able to provide this DC the IP address of the
                                 DNS servers that are authoritative for the affected zones.

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