DNS stops resoving and domains

Posted on 2011-10-26
Last Modified: 2012-05-12
I have a strange, new problem.  My network has been up for about 7 years with no DNS problems.  We us AD integrated DNS on Windows 2008 R2 Enterprise.  Our ISP is AT&T.  We host our Mexico users out of Houston via Terminal Services.  The only recent change is that I have now removed all DNS servers from Mexico.  About once a week my DNS server stops resoving and domains.  I have to go to the DNS Server, clear the cache and restart the service and it works fine.  I have users all over the world and only have problems with these two domains.  Anyone have any ideas?
Question by:sqlguy29
    LVL 21

    Expert Comment

    What errors/results do you see in the logs when it fails to resolve those domains?
    LVL 59

    Accepted Solution

    I would first check your DNS Forwarders make sure you have the most updated forwarders listed

    Author Closing Comment

    I was missing my forward.  Not sure what happened there.  Thanks

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