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One way to diagnose if a dns problem.

whois xbox.com

grab the nameservers from the whois.

In this case:

ns3.msft.net

   ns4.msft.net

   ns1.msft.net

   ns2.msft.net

   ns5.msft.net

On the command line:

nslookup

server ns1.msft.net (etc.)

xbox.com

www.xbox.com

msft.net

...etc.

In this case ns1.msft.net doesn't even answer consequently you will not be able to get any addresses for the other domains.

If you query your local isp dns (or google at 8.8.8.8 or 8.8.4.4) it's possible they have the addresses cached and will return something.

But if the dns isn't answering (per the whois) you have at the very least a dns issue.

While I was typing this ns1.msft.net started to answer again...when I started the "server ns1.msft.net" part failed.




yeah that'll happen when the firewall on your DNS server blocks DNS requests cuz some admin messed up a GPO. heh




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