When I try to connect to any Stack Exchange site from work, I notice that it comes up as 403: Forbidden on Windows. I checked my corporate web filter and SE sites are not on the blacklist. Why can I access SO from any computer except the Windows machines at work?

  • 2
    Can you ping stackoverflow.com (or any other site that's affected) and post the IP that responds? If it's not one of SO's servers, then there's something wrong with the DNS. Commented Jul 23, 2009 at 19:12
  • This isn't meta enough. Belongs on SuperUser! Commented Jul 23, 2009 at 19:14
  • 1
    Try downforeveryoneorjustme.com/superuser.com from one of your down machines.
    – Sampson
    Commented Jul 23, 2009 at 19:15
  • That's a good idea Kyle. Ping seems to respond and has the correct IP for StackOverflow.
    – jweede
    Commented Jul 23, 2009 at 19:48

1 Answer 1


You're on the banned IP list.

Email us via the link at the bottom of every page with your IP.

  • OOOOOOOoooooooo Commented Jul 24, 2009 at 1:59
  • That explains it. :-)
    – jweede
    Commented Jul 25, 2009 at 12:56
  • ...and resolved!
    – jweede
    Commented Jul 28, 2009 at 12:58

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