Hello, I have to 2 DNS servers in my local domain using AD secure dynamic update. I ran dcdiag /test: DNS and received the following errors about DNS delegation being broken. Any help fixing this issue would be greatly appreciated. Note: I ran the DNS best pratice analyzer and no errors were reported.

Hi, Please see if any of the following discussions helps in your scenario Windows 2008 R2 DNS Issue - Recursion and Delegation http://social.technet.microsoft.com/Forums/en-US/winserverPN/thread/4ba558e9-e49c-41c7-81f9-0cdeb4ba725c [Error details: 9003 (Type: Win32 - Description: DNS name does not exist.)] - Read the thread completely ! http://social.technet.microsoft.com/Forums/en-IN/winserverDS/thread/b4c0fdaa-b657-4396-87f0-4d05b344d834 I do not represent the organisation I work for, all the opinions expressed here are my own. This posting is provided "AS IS" with no warranties or guarantees and confers no rights. - .... .- -. -.- ... --..-- ... .- -. - --- ... ....

Hi metter2369, Thanks for posting here. Is this domain name adafpre.lcoal.ADAFPRC.LOCAL we want? If no, could we go to these two domain servers and verify the zones we hosted on it and see if we have ever added a delegate zone which name adafpre.lcoal under domain zone ADAFPRC.LOCAL ? If we do have then please deleting form it and rerun the diagnosis program to see how is going . Delegating zones http://technet.microsoft.com/en-us/library/cc784494(v=ws.10).aspx Regards, Tiger Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tnmff@microsoft.com.Tiger Li TechNet Community Support

Hi metter2369, It may have the structure below in Forward Lookup Zones list on these two servers, could we verify that ? Regards, Tiger Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tnmff@microsoft.com.Tiger Li TechNet Community Support

Hello, Here is how the structure looks. Does this look right?

Hi metter2369, Thanks for update. It appears that the domain adafprc is not properly delegated cos a normal delegating domain should show in gray which like _msdcs in the picture posted and whats shown in the picture I posted. I would suggest to delete (form local and its sub item adafprc ) first , after that please recreating the DNS delegation with pointing to the proper address of DNS server that contains this subdomain . Create a Zone Delegation http://technet.microsoft.com/en-us/library/cc753500.aspx Regards, Tiger Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tnmff@microsoft.com.Tiger Li TechNet Community Support

Hi metter2369, Thanks for update. It appears that the domain adafprc is not properly delegated cos a normal delegating domain should show in gray which like _msdcs in the picture posted and whats shown in the picture I posted. I would suggest to delete (form local and its sub item adafprc ) first , after that please recreating the DNS delegation with pointing to the proper address of DNS server that contains this subdomain . Create a Zone Delegation http://technet.microsoft.com/en-us/library/cc753500.aspx Regards, Tiger Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tnmff@microsoft.com.Tiger Li TechNet Community Support

Hi metter2369, Please feel free to let us know if the information was helpful to you. Regards, Tiger Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tnmff@microsoft.com.Tiger Li TechNet Community Support

Thank you for your help! Problem resolved... I did not need to create a new DNS Delegation. I just deleted local to fix the problem. I ran DCDiag /Test:DNS again which reported no problems.