We have DHCP server with one scope, some IP's are exluded from DHCP scope but sometimes its creating duplications for the same. also bad addresse are generating continuesly.

Hello, please post the OS version in use and also check the event viewer for errors and post them here. Is that server domain memeber and authorized in Active directory or a standalone server?Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Hi, It is windows 2k3 enterprise edition, there is no error in event viewer for DHCP. It is main domain controller and authorized in AD

Hi , Perform jetpack the dhcp database , follow the below article. http://support.microsoft.com/kb/325473