FilddlerCap - Failed to resolve the name of server fiddlercap.fiddler

4 posts, 0 answers
  1. Salvatore
    Salvatore avatar
    6 posts
    Member since:
    Aug 2013

    Posted 07 Mar 2014 Link to this post

    Hello,

    FiddlerCap was used to work smoothly, but since I updated to latest version, I always get the following error when I start capturing a session:

    503 Service Unavailable
    Failed to resolve the name of server fiddlercap.fiddler

    I attached a screenshot.

    Thanks,
    Salvatore
  2. Eric Lawrence
    Admin
    Eric Lawrence avatar
    833 posts

    Posted 07 Mar 2014 Link to this post

    The error message in question indicates that the system's proxy setting isn't pointed at FiddlerCap, which means that some other software on the system is interfering with the normal function of the proxy setting APIs.

    If you run Fiddler on the same PC, do you see that Fiddler is unable to capture any traffic?

  3. Salvatore
    Salvatore avatar
    6 posts
    Member since:
    Aug 2013

    Posted 07 Apr 2014 in reply to Eric Lawrence Link to this post

    Hello,

    Fiddler is working smoothly on the same machine, that's why I'm concerned about this issue.

    Fiddler is configured to use the default System Proxy (via a PAC file) and old versions of FiddlerCap were working with no issues, unfortunately I can't troubleshoot it.

    Salvatore
  4. Eric Lawrence
    Admin
    Eric Lawrence avatar
    833 posts

    Posted 07 Apr 2014 Link to this post

    Hi, Salvatore--

    Sorry, I don't really understand what "I can't troubleshoot it" means.

    When FiddlerCap is capturing, what do you see inside Internet Explorer's Tools > Internet Options > Connections > LAN Settings screen?

    Regards,
    Eric Lawrence
    Telerik
     

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