I'm at work. Currently, we're having some fierce networking problems and every website I try to open throws an error similar to Firefox can't find the server at www.google.com.. However, I can still browse StackOverflow and I am posting this, which proves that I'm not reading from cache.

How is this possible?

  • Sounds like a problem for SuperUser.
    – wheaties
    Sep 14, 2010 at 20:54
  • Sounds like DNS issues. Sep 14, 2010 at 20:56
  • 1
    Point your DNS at and and see what happens. Sep 14, 2010 at 20:57
  • 11
    So now you've migrated the question from the one site he can still reach to one he can't. I understand the motivation, but realize that you didn't do him any favors. Sep 14, 2010 at 21:00

4 Answers 4


your network is experiencing DNS outage. SO name is still in the local DNS resolver cache.

  • Wow, what does it say about SO that he has SO in his DNS resolver cache, but not google????
    – BillN
    Sep 15, 2010 at 20:05

Sounds like a DNS issue. Point your DNS at and and see what happens.


For this specific issue it sounds like @Franci Penov and @iftrue are right - you're having DNS issues.

On a more general level you should make sure you have some sort of connectivity in case your primary network goes down. This can be a separate connection (DSL + cable or dialup), a cell phone with a data plan and tethering, or the local coffee shop.


dig is your friend here for analysing DNS issues. If you're a Windows man like me, you can get dig for Windows from Nicholas Fong's site. (site also has basic user guide on it) - if you can't resolve it, the server's IP is for your hosts file!

Find out the IP address of your primary DNS server then run

dig www.google.com. @ip.of.dns.server

If that yields something with

com.                    900     IN      SOA     a.gtld-servers.net. nstld.verisign-grs.com.

(or similar) in the results, then your DNS server's poorly. If you get a list of results in the ANSWER section including www.google.com, www.l.google.com and www-tmmdi.l.google.com (for example) then your DNS resolver is working and your own PC is not.

As others have said, try Google's DNS servers. Alternatively, try OpenDNS' servers: and Best of luck...

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