If one AD server down, cannot log onto network using 2nd AD server

We have 2 Windows 2000 Domain Controllers. Each is in a different location
on a different subnet. They are all part of the same domain. They are
connected thru a Wan link using Cisco routers.

I recently noticed that when one server was rebooting at one location, PC's
at that location could not locate a domain controller to log on.

Is there anything I need to check to make sure that PC's at one location can
still log on to the Domain by using the Domain Controller at the remote
location ?

Thanks

In news:6BBF898A-B262-4B2D-B6EA-(E-Mail Removed),
Ray Brown <(E-Mail Removed)> typed:
> We have 2 Windows 2000 Domain Controllers. Each is in a different
> location on a different subnet. They are all part of the same
> domain. They are connected thru a Wan link using Cisco routers.
>
> I recently noticed that when one server was rebooting at one
> location, PC's at that location could not locate a domain controller
> to log on.
>
> Is there anything I need to check to make sure that PC's at one
> location can still log on to the Domain by using the Domain
> Controller at the remote location ?
>
> Thanks

Are all the DCs in their own sites/subnets?

I would check the DNS settings first. quoted from http://www.chicagotech.net/dnstroubl...20DNS%20Issues

4. If you have two or more DNS servers in different locations, you will setup primary DNS and 2nd DNS servers point to themselves as primary and each other as secondary.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Ray Brown" <(E-Mail Removed)> wrote in message news:6BBF898A-B262-4B2D-B6EA-(E-Mail Removed)...
We have 2 Windows 2000 Domain Controllers. Each is in a different location
on a different subnet. They are all part of the same domain. They are
connected thru a Wan link using Cisco routers.

I recently noticed that when one server was rebooting at one location, PC's
at that location could not locate a domain controller to log on.

Is there anything I need to check to make sure that PC's at one location can
still log on to the Domain by using the Domain Controller at the remote
location ?

Thanks