Can't load https page while capturing

2 posts, 0 answers
  1. Ed
    Ed avatar
    1 posts
    Member since:
    Mar 2014

    Posted 10 Mar 2014 Link to this post

    I'm seeing response text like this:> Failed to secure existing connection for <url> . A call to SSPI failed, see inner exception. InnerException: System.ComponentModel.Win32Exception: The token supplied to the function is invalid

    The server is Tomcat.

    Fiddler v2.4.6.2

  2. Eric Lawrence
    Eric Lawrence avatar
    832 posts

    Posted 14 Mar 2014 Link to this post

    Hello, Ed--

    The error message in question is coming from Windows, which is apparently having a problem accessing the private key for the certificate. Which version of Windows are you using? Do you have all updates from WindowsUpdate installed? Do you have any 3rd party encryption or SmartCard software (e.g. "Entrust") installed?

    Your first step should be to disable HTTPS decryption and choose "Remove Interception Certificates." Delete all certificates and untrust from the certificate store.
    Next, re-enable HTTPS decryption, allow the root to be recreated and retrusted. Then see if the problem goes away.
    If not, try installing the Fiddler Certificate Generator plugin and restart. Use the QuickExec box and type:
      prefs set fiddler.certmaker.bc.Debug True
    and hit enter. Restart Fiddler and do you see anything more in the Log tab when you try to navigate to a HTTPS site?
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