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DHCP failover configuration fails

Posted on 2013-01-14
Medium Priority
Last Modified: 2013-05-03

I'm trying to configure DHCP failover on all of my scopes to another Server 2012 with DHCP installed. But when I try to configure DHCP failover, it comes with this error:

Error 20044. The class name being used is unknown or incorrect.

The class name being used is unknown or incorrect
What am I doing woring.
Question by:Sum Wum
LVL 23

Expert Comment

by:Thomas Grassi
ID: 38774310

Expert Comment

ID: 38791914
please review these URL,

1. http://technet.microsoft.com/en-us/library/hh831385.aspx
2. http://blogs.technet.com/b/teamdhcp/archive/2012/06/28/ensuring-high-availability-of-dhcp-using-windows-server-2012-dhcp-failover.aspx

here Microsoft Article shows step by step, i think you should check the configuration from step 1. and keep in mind check your event logs

Accepted Solution

Sum Wum earned 0 total points
ID: 38809391
It turns out that it was a server option that there was something wrong with. After I deleted it and created it again, everything works.
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LVL 23

Expert Comment

by:Thomas Grassi
ID: 38809772
Hope my article helped you determine that

Author Closing Comment

by:Sum Wum
ID: 38843123

Expert Comment

ID: 39134540
I get the same error message. How did you find out what server option was 'wrong'?

Author Comment

by:Sum Wum
ID: 39134554
I found out that I had manually entered the same option for both the scope and the server. After I removed it from the scope, it appeared as a server option and everything worked fine.

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