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A possible issue with Fiddler on windows 10

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Fiddler Classic
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Roy
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Roy asked on 25 Aug 2015, 07:02 AM

Recently updated to windows 10 and found Fiddler is behaving weird. I got some wcf web services hosted locally for dev purpose.

When I try to call wcf service, while Fiddler is running, everything is fine.

When Fiddler is turned off (exited) wcf service does not work, client complaints it can't find the service.

Uninstalled Fiddler and restarted the PC, everything is fine.

Seems like Fiddler is not clearing up some settings somewhere..

Any suggestions is highly appreciated.

Cheers guys.. 

 

 

 

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Eric Lawrence
Telerik team
answered on 25 Aug 2015, 08:21 PM
Hi, Roy--

We've been using Fiddler on Windows 10 since the first tech previews, and about 18% of our users are currently using Fiddler on that OS. There are no known issues with Windows 10 at this time.

Uninstalling Fiddler doesn't change any settings at all.

While Fiddler isn't running, what do you see inside IE's Tools > Internet Options > Connection > LAN Settings screen?

What is the "client" in your scenario? Is it a browser, or a managed or native application? 

Regards,
Eric Lawrence
Telerik
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Roy
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answered on 28 Aug 2015, 12:57 AM

Hi Eric,

Thanks for the reply and sorry for the delay in replying.

While Fiddler is running it correctly changing the Connection settings in IE and once Fiddler is closed, connection settings are reverted to what ever it was (in my case it is Auto Detect).

My client is a Silverlight app, which calls WCF services.

 

I got another AngularJS/HTML5 app which calls REST web api, which works without needing Fiddler running.

My network guy had a look at as well, and we could not figure it out. Why I suspected Fiddler was once uninstalled and restarted everything was fine. :(

Regards

 

Roy

 

 

 

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