Fiddler disables system proxy automatically

2 posts, 0 answers
  1. Donald
    Donald avatar
    1 posts
    Member since:
    Oct 2016

    Posted 18 Oct 2016 Link to this post

    Hi there,


    After I updated the latest Fiddler(Telerik Fiddler Web Debugger (v4.6.2.32002)) recently, thers is often a yellow bar with "The system proxy was changed..." shows on the top of the window, and stop capturing.

    This happens really often, about per 15 seconds.

    I used Process Monitor to find out which application has changed my system proxy, and find out the system proxy was disabled by Fiddler itself, as the picture attached.

    Have anyone know the reason, and how can I fix it.



  2. Tsviatko Yovtchev
    Tsviatko Yovtchev avatar
    549 posts

    Posted 21 Oct 2016 Link to this post


    Fiddler is a proxy so on startup it sets itself as the system proxy and on exit it restores the original proxy. The message you see results from some other software changing the proxy while Fiddler is running. That makes Fiddler stop working and that is why you see this message.

    Tsviatko Yovtchev
    Telerik by Progress
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