On Sun, 24 Aug 2003 18:11:02 -0400, John wrote:

>We have an NT4.0 domain that has been giving our server folks a fit for the
>past 2 years.
>
>There are several thousand systems on this resource domain.
>The domain controller is a workstation with a 1Ghz processor and 512MB of
>RAM.
>It has three BDC's.
>
>Often, when I pull up Server Manager, I get "No PDC Found ... ".
>When I check the PDC with Server Manager, I get "No Network ... ".
>However, I can ping the PDC.
>Sometimes, if I stop and then start the Netlogon service, it comes back.
>Most of the time, the PDC needs to be re-booted, it works for a while, then
>goes belly-up again after a few hours.
>It's not the hardware.
>The PDC has been replaced.
>It is on a 100Mb ethernet connection.
>The BDC's have all been promoted at one time or another, but no joy.
>
>Could the SAM database be corrupt?
>
>I just don't have enough knowledge to pusue this any further, and our
>server folks don't seem to be concerned enough about it.
>
>All suggestions welcome.
>Please just post your ideas.
>
>Thanks!
>
>-john

You may have a WINS problem.