I have a 2K8R2 domain with two domain controllers. This domain is trusted with a 2K3 domain with 3 domain controllers. Each domain has a forward lookup for ther other. For instance, Domain A has a forward lookup for Domain B, and Domain B has a forward lookup for Domain A.
One of my 2K8 domain controllers' A record keeps getting dropped out of DNS. The error I get is below:
Log Name: System
Date: 9/21/2012 12:54:25 PM
Event ID: 5774
Task Category: None
The dynamic registration of the DNS record '_ldap._tcp.Default-First-
l. 600 IN SRV 0 100 389 CCA-SCH-AD01.CCA.local.' failed on the following DNS server:
DNS server IP address: ::
Returned Response Code (RCODE): 0
Returned Status Code: 0
For computers and users to locate this domain controller, this record must be registered in DNS.
Determine what might have caused this failure, resolve the problem, and initiate registration of the DNS records by the domain controller. To determine what might have caused this failure, run DCDiag.exe. To learn more about DCDiag.exe, see Help and Support Center. To initiate registration of the DNS records by this domain controller, run 'nltest.exe /dsregdns' from the command prompt on the domain controller or restart Net Logon service.
Or, you can manually add this record to DNS, but it is not recommended.
Error Value: DNS name does not exist.
<Provider Name="NETLOGON" />
.local. 600 IN SRV 0 100 389 CCA-SCH-AD01.CCA.local.</D
Also, when I run DCDiag I on the DC I get the following:
Doing initial required tests
Testing server: Default-First-Site-Name\SC
Starting test: Connectivity
The host 6661ce89-18d4-4f9e-bb95-b0
not be resolved to an IP address. Check the DNS server, DHCP, server
Got error while checking LDAP and RPC connectivity. Please check your
......................... SCH-AD01 failed test Connectivity
Any ideas how to fix this?