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domain name system - Windows 7 with external and internal dns fails on interal queries

I configured my Windows 7 box for 4.2.2.4 as the primary DNS and an internal DNS server for secondary. When I make lookup queries for private IP'd internal servers I get an error from the primary DNS that the IP could not be found. The secondary DNS server is not getting the request. If I swap the primary and secondary DNS servers the query works fine. The reason for 4.2.2.4 as primary is that our DNS servers are in Europe.

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