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Active Directory DNS Not Forwarding

We seem to have an increasing number of sites that are not being forwarded by our DNS server.  I am seeing DNS requests leaving the workstation,  but we don't see traffic getting to the firewall,  which is the next hop.  

NSLOOKUP fails to resolve the sites as well.
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Mike Kline
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japplewhaite

ASKER

Yes I see the requests getting to the DNS server
No there is no firewall between the client and the DNS server and the DC is also the DNS server.
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This s the return form the NSLOOKUP

C:\WINDOWS>nslookup www.ruchworksmedia.com
Server:  srvvmdc1.georgetown.local
Address:  192.168.26.171

*** srvvmdc1.georgetown.local can't find www.ruchworksmedia.com: Non-existent do
main

C:\WINDOWS>















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Forwarding is enabled and the only DNS servers that are on all of our clients use the primary and secondary Domain controllers with DNS on both of them.  
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What happens when only a few addresses have problems?  I have about four addresses that I know if that are not resolving.
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