I'm encountering a strange issue with DNS resolution on my two DNS servers, I also have confirmation of atleast one other domain that is having this issue.

I'm running 2 DNS server, 2008 and 2008r2 in a domain. I run the DNS servers with root hints, has i don't like relying on anyone else, the fact that my ISP has flaky DNS servers does not help. The unrelated domain that is having the problem is also running server 2008 with roothints

I'm encountering a few domains that simply will not resolve. Two examples are:

www.cogeco.ca
www.rogers.com

I found a few others, but did not document them.

I started up a BINDS server to test with (to see if DNS was being blocked by the ISP or destination) and BINDS is able to resolve without a problem. Also tested was a DNS server on windows 2003 and it was able to resolve without an issue.

As a work-around, I'm setting Conditional Forwarders in the DNS for these domains and forwarding them to my BINDS server. However this is a very manual process and relies on reports from the users.

Can anyone confirm this problem, recreate it or have a fix for it?