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Firewall blocking NSLOOKUP for public

Posted on 2013-01-14
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Last Modified: 2013-01-21
Hi All ..... brain freeze at present with a new Server 2012 with DNS and AD Domain Services installed.

Any NSLOOKUP or name resolution for external hosts fails (TIme Out) from command prompt. Disabling Public Windows Firewall fixes issue, but not sure on what I need to allow on this firewall so I can switch it back on?
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Question by:Flipp
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Expert Comment

by:bbao
ID: 38776930
> Disabling Public Windows Firewall fixes issue

do you mean the built-in firewall services on the Windows 2012 server?
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Author Comment

by:Flipp
ID: 38777112
Yes correct
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Expert Comment

by:bbao
ID: 38778243
you may first try resetting the firewall with default rules, as shown below.
Windows Firewall with Advanced Security
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Author Comment

by:Flipp
ID: 38780978
By doing this, I may lose other settings on Firewall - i'd prefer to identify what may need to be added as an exception :)

Any thoughts?
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Expert Comment

by:bbao
ID: 38781571
did you notice the Import and Export options above the Reset option? you won't lose the settings. :-)
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Author Comment

by:Flipp
ID: 38785427
Firewall disabled and still seeing issues :(

When in DNS Forwarders, I notice that timeouts are occurring on ISPs and Google's Public DNS Servers?
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Expert Comment

by:gheist
ID: 38786077
You need to say the domain name and DNS server if you want people to help you.
After you got your help you can ask moderators to clean private info form your posts.

Sadly nobody can guess what problems you are experiencing from graphic screenshots not even shoving a single error message.
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Accepted Solution

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Flipp earned 0 total points
ID: 38786361
NIC Teaming mode incorrectly set on Hyper-V Host. Was set to Address Hash when should of been Hyper-V Port.
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Expert Comment

by:bbao
ID: 38797494
>> Disabling Public Windows Firewall fixes issue
> Firewall disabled and still seeing issues

which description was correct??
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Author Comment

by:Flipp
ID: 38797544
Also came across http://social.technet.microsoft.com/wiki/contents/articles/14131.windows-2012-server-nic-teaming-for-hyperv.aspx which confirms my testing results and the mode I now HAVE TO use.
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Author Closing Comment

by:Flipp
ID: 38800584
Solution had nothing to do with any response and totally unrelated to question.
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