Windows server has a recurring warning happening at random intervals. The event ID is 1020 and the source is DHCP-Server.

Questions regarding this error:

a. What does this problem indicate?

b. What steps would you take to resolve the error and the underlying condition causing the issue?

Hi Hari,

This indicates DHCP server does not have IP addresses available to provide to the requesting client.

Possible solutions:

• Use scope extension to expand the address range for the current scope.
• Reduce the lease duration and decrease the cleanup interval. This can help to speed the reclaiming of expired scope IP addresses.

More info: 

http://social.technet.microsoft.com/wiki/contents/articles/1414.event-id-1020-microsoft-windows-dhcp-server.aspx