Some DNS queries are unsuccessful after deploying a Windows Server 2008 R2 DNS server

Some DNS name queries are unsuccessful after you deploy a Windows Server 2008 R2-based DNS server. It seems inconsistent but it all depends on the DNS Name being called. (BMO.COM always exhibits the problem)

http://support.microsoft.com/kb/832223

Scenario:

Clear DNS cache on the server:
dnscmd /clearcache
Run NSLOOKUP
Set type=all
BMO.COM
Notice that the first attempt times out. Repeated attempts will eventually be successful.
Workaround:
Type: dnscmd /config /enableednsprobes 0

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Pat Spencer

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