I am facing the below warning in the event viewer The DNS server encountered a packet addressed to itself on IP address 192.168.1.12. The packet is for the DNS name "_ldap._tcp.Default-First-Site-Name._sites.gc._msdcs.tpsonline.com.". The packet will be discarded. This condition usually indicates a configuration error.Haseeb

Hi, Have a look at this article: http://support.microsoft.com/kb/218814

My problem is resolved Dear Kudrat the link which you gave me, i already ckeched it but i did not get any success. What i did to resolve my problem, I uninstall the DNS and installed it again, and the problem is resolved and all the clients registered itself to the DNS again as the DNS of microsoft is Dynamic DNS Thanks for your input KudratHaseeb