For about 1-2 weeks now, this Domain Controller has been losing its DNS service!

I've checked it with XoftSpy SE along with Spybot and nothing shows up.  I'll now it has lost it by no longer being able to print to Network Printers.  I login in to the box, re-add the Service and re-create the forward and reverse look-up zones and all comes back up.  
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dpbouchardAsked:
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dpbouchardAuthor Commented:
Hold on a second, I just found out that it seems XoftspySE is reporting 4 spyware problems that seem to be related to DNS.  My new hunch is that it is incorrectly reporting the normal DNS controlset settings as spyware and the startup scan may be removing the DNS settings unbeknownest to me.  I need to check with XoftSpy first so please put this question logically "on hold" if possible.  

And, also, my patches are up-to-date.
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David Scott, MCSENetwork AdministratorCommented:
are you saying the the dns service completely uninstalls from the server? so you have to go back into add/remove programs, add/remove windows components and readd it?  
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dpbouchardAuthor Commented:
The DNS "role" is indeed removed and I have to go back and add it back as a service.  Normally, I do this thru the Manage System UI that has an "Add a role to this server macro" that I run.  Since I do save the I386 directory on the C drive, it doesn't require me to load any disks, but it sure does look like an initial install of the DNS service.  It does notice that the forward lookup zone is already defined so I always get back what used to be there.
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David Scott, MCSENetwork AdministratorCommented:
wow.  are you current on windows updates?  

http://www.microsoft.com/technet/security/Bulletin/MS07-029.mspx

i'm sure the server has a static ip or a dhcp reservation correct?

how many nics--are they teamed?  

what about a virus scan?  windows defender?

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David Scott, MCSENetwork AdministratorCommented:
another thing you could do is go to hijack this and post your results here.  

http://www.whatthetech.com/hijackthis/
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