Joining child domain Domain Controllers into root domain

Hello,
I am tasked with redoing a network between 4 buildings for a school district.  
This is the first large deployment I have done between buildings using the internet for
domain affiliation and the first time I’ve used Server 2008.  I have purchased new servers
for each building, each of which is running Windows Server 2008 Enterprise SP2.  I am not able to deploy the servers for about another month so I have set up a mini network with 3 public IP’s running through 3 different routers (Linksys RVS4000) configured like the local LAN’s of each building.  I have created VPN’s between each router for communication between the routers to emulate the way they will communicate between the buildings.  They all have internet connectivity.

I have configured the main server for the board office as the Global Catalog.  This houses the root domain school.net (not real name).  I intend to bring the other servers in as child domains of first.school.net, second.school.net, third.school.net.

The second.school.net domain controller joined the root domain properly and is doing DNS properly.  Al the files have populated to the Global Controller, no issues.  When I follow the same steps for third.school.net, I receive event id's 4001, 4005, and 4521.  These are the event properties.

Event Type:      Error
Event Source:      DNS
Event Category:      None
Event ID:      4001
Date:            3/24/2010
Time:            1:26:39 PM
User:            N/A
Computer:      DC.third.school.net
Description:
The DNS server was unable to open zone _msdcs.school.net in the Active Directory.
This DNS server is configured to obtain and use information from the directory for
this zone and is unable to load the zone without it. Check that the Active Directory
is functioning properly and reload the zone. The event data is the error code.

For more
information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 20 00 00 00                ...    

Event Type:      Warning
Event Source:      DNS
Event Category:      None
Event ID:      4521
Date:            3/24/2010
Time:            1:32:39 PM
User:            N/A
Computer:      DC.third.school.net
Description:
The DNS server encountered error 32 attempting to load zone _msdcs.school.net from Active Directory. The DNS server will attempt to load this zone again on the next timeout cycle. This can be caused by high Active Directory load and may be a transient condition.  For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.


Event Type:      Information
Event Source:      DNS
Event Category:      None
Event ID:      4005
Date:            3/24/2010
Time:            1:32:39 PM
User:            N/A
Computer:      DC.third.school.net
Description:
The DNS server received indication that zone _msdcs.school.net was deleted from the Active Directory.  Since this zone was an Active Directory integrated zone, it has been deleted from the DNS server. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Any ideas?
smtsolAsked:
Who is Participating?
 
Mike ThomasConnect With a Mentor ConsultantCommented:
Be patient and give it some time to allow replication before you start to tinker with it, if this is the 3rd child you have built and you have done it the same then just wait a little.

It maybe knows the zone exist but cant load it because it does not yet have a copy.
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smtsolAuthor Commented:
Is this the issue why they forward lookup zone _msdcs.third.school.net says "The DNS server encountered a problem while attempting to load the zone.  Thezone data may not be available in Active Directory, or the zone data is corrupt.  Correct the problem then either press F5, or on the Action menu, click Refresh."
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