Hi,I have setup a Win 2003 domain, and i am using my DC as a DNS Server for my domain. And configured my ISP DNS IPs in the Forwarder. It was working fine but suddenly problem has poped up. I am unable to browse the internet and also nslookup fails. Even in the dns server nslookup fails.Afterrestarting the DNS client and server services it starts working fine.This is causing lot of problem. Please help me to resolve this.

Hi Vijayendra,This is Exchange Server - Deploy forum, suggest you to post your query in Windows forum to get faster response from product experts. Windows Forum: http://social.technet.microsoft.com/Forums/en-US/category/windowsserver/Amit Tank || MVP - Exchange || MCITP - Exchange 2007 || http://ExchangeShare.WordPress.com