Just downloaded Fiddler Everywhere - Mac

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Fiddler Everywhere MacOS
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Berlin asked on 03 Aug 2022, 06:53 PM
Just downloaded and tried to use Fiddler Everywhere for Mac osx - 

MacBook Pro (15-inch, 2017)

16 GB 2133 MHz LPDDR3

Catalina - 10.15.7 (19H1922)


When I launch Fiddler Everywhere 3.3.1

Nothing happens it tries to start, says loading in the prompt then crashes.

I am trying to do the trial


Any advice?

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commented on 03 Aug 2022, 06:54 PM | edited

It looks like it takes about 2-3 minutes to startup...still fails

I am also on a company VPN, could be related.
Nick Iliev
Telerik team
commented on 04 Aug 2022, 07:05 AM

Hey Berlin Brown,


While Fiddler Everywhere is not compatible with some VPN tools, it does not makes sense that it fails to start. Most likely, you will see a login error due to some endpoints being unreachable through the VPN, but the application remains active.

Check if you have access to the required endpoints from our prerequisites. Alternatively, you can also use the following endpoint to verify that you can access the Fiddler Everywhere endpoints:


You can also privately send us the Fiddler Everywhere log files to support at getfiddler.com. Refer tothis KB articleon how to access the logs manually. Note that these logs might contains sensitive personal data, so do not post them in public forums.


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