Fiddler causes my Internet access to stop working

Question

I have Windows 8.1 installed on my computer and regularly use Fiddler to capture web traffic.

Recently, however, when I open Fiddler and have it capture web traffic, my Internet connectivity dies. The error I get when I open IE is "This page cannot be displayed." In Chrome, I get "The web page is not available" with the following error: Error code: ERR_CONNECTION_RESET.

Fiddler doesn't even capture any of the requests going out. The weird thing is, this problem randomly starts, but then in an hour or two, it's fine. I don't restart Fiddler; it just suddenly starts working again.

I tried following the steps in Fiddler and Internet Explorer 11 on Windows 8.1, but that didn't help.

Why is Fiddler having this problem, and how can I fix it?

Answer 1

Follow this steps and you'll have internet again : internet properties => connections => LAN setting => debifate "use a proxy server for your lan".

Answer 2

Go to Fiddler Options/ gateway and select

USE System proxy.

Answer 3

I also found this issue and the reason is that webstorm has a build-in nodejs server which also listens on 8888. So when i open webstorm and fiddler at the same time i can't access the internet. Just change the port!

Answer 4

I've found a solution to this after a few days troubled. When closed or stopped using Fiddler capture request, its still not change all the setting into previous settings that fit for windows 8/8.1/10 so all you have to do is following these steps:

1. Open internet setting *run -> inetcpl.cpl or *search internet option

2. Connection tab -> LAN setting -> untick the Proxy Server (this in case Fiddler wasn't restore the setting) -> OK

3. Security tab -> Local Intranet -> Restore default -> OK

now all the universal apps have access to the internet again.

Answer 5

Tools, Internet options, Connections, Lan Settings, untick 'use a proxy server' for your lan and tick 'automtacally detect settings'