You want to manually force registration of a domain controller's resource records. This may be necessary if you've made some configuration changes on your DNS servers to allow your domain controllers to start dynamically registering resource records.
> nltest /dsregdns /server:<DomainControllerName>
The Windows Server 2003 version of nltest provides a /dsregdns switch that allows you to force registration of the domain controller-specific resource records. You can also force reregistration of its resource records by restarting the NetLogon service on the domain controller. The NetLogon service automatically attempts to reregister a domain controller's resource records every hour, so if you can wait that long, you do not need to use the nltest command.
Recipe 13.12 for verifying if a domain controller is registering its resource records