DHCP scopes disappeared after server restart. Any help on this

Hi, Thanks for post here. Before we move on, I would like to confirm the following information with you: 1. What is the version of the Windows Server operating system? 2. Is the issue with DHCP scope configuration, scope options, server level options, or any of your specific options? 3. is there any DHCP related event has been recorded in event log ?could you post the event ID and description here for further investigation ? Meanwhile, here are some links for you reference to isolate this issue: DHCP Best Practices http://technet.microsoft.com/en-us/library/cc780311(WS.10).aspx DHCP Troubleshooting http://technet.microsoft.com/en-us/library/cc787404(WS.10).aspx Thanks Tiger LiPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.