I am trying to connect to connect to www.czebox.cz using internet explorer on Windows 2003 server.

If you have a server to test from please do, and you'll notice that it does not connect instead returns - Internet Explorer cannot display the webpage.

From Firefox it works fine on the server.

From Windows 7 it works fine in Internet Explorer.

How can I get it to work in Windows 2003 Server using IE?

  • This sounds fishy. I'd be wary of that link.
    – rodey
    Apr 20, 2010 at 14:37
  • @rodey - Mmm, hardly fishy since its a government provided service
    – JL.
    Apr 20, 2010 at 14:38
  • @JL: doesn't that make it more fishy, not less? :) Apr 21, 2010 at 9:37

2 Answers 2


You should install KB 938397 on windows 2003 to support new SHA-2 certificates.


I have same problem on win 2003 and IE7. It had been working before they chaged certificates throught weekend. But new certificates didn't resolve it for me.

See: http://www.datoveschranky.info/clanek/341



  • New certificates didn't solve it for me too. We have a situation where we are unable to make a connection to test environment from any Windows 2003 Server. I tried deleting all certificates and then testing from Internet Explorer, but this too didn't help.
    – JL.
    Apr 21, 2010 at 7:37
  • hotfix KB 938397 - fixed the issue
    – JL.
    Apr 21, 2010 at 7:47
  • Martin are you developing a windows based solution?
    – JL.
    Apr 26, 2010 at 16:23

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