de-authorized DHCP server

[Guest]

I have several DHCPs servers in several sites in my organization and they
since a week ago deauthorize themselves, and in event veiwer shows me this
event, with event id 1051:

The DHCP/BINL service has determined that it is not authorized to service
clients on this network for the Windows domain: corporativo.posadas.com.mx.


I use Win2k SP4 in all servers, and the servers are domain controllers.
Any suggestion to solve this problem would be greatly appreciated
Oswaldo.

 

[Cameron Dorrough]

You might have a Scope conflict. Are you doing any replication between
sites?

Cameron

 

[Guest]

Yes I have multiple Sites ( around 50 ). But Scopes are just fine.

 

[Cameron Dorrough]

In the absence of a more informed opinion..

AFAIK, this error is usually caused by one DHCP Server detecting the
presence of another Server already servicing clients for the domain.

Are you getting the same error on all 50 boxes? Strange.. As a last-ditch
effort, you could Unauthorize and stop the DHCP Server service on each site
and bring them back on one at a time to see at what stage you get the error.
You have a conflict somewhere and this might help you find it.

Good luck!
Cameron