I have installed fiddler on my local machine and when it's working for a long time it uses a lot of RAM.
I have internet when I'm using fiddler but when I close it, I lose my internet connection.
How do I switch off fiddler properly so that I don't lose my internet connection?
21 Answer
I'm using fiddler but when I close it, I lose my internet connection.
Fiddler sometimes doesn't restore the Internet Proxy Settings when it is closed (it stays set to its own proxy, which is not longer running).
This means HTTP traffic will be sent to a proxy that doesn't exist.
"The proxy server isn't responding" Problem Caused by Fiddler
Very occasionaly I ran into the problem of losing network connection after using Fiddler for debugging with web traffic. To be more precise, this problem usually happens after closing the Fiddler application.
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After this problem happens, and when I open IE, I see the error message of "The proxy server isn't responding".
Fiddler sometimes fails to unregister itself as the system proxy upon on quitting. In that case you will be redirecting all your HTTP traffic to a proxy that doesn't exist, and thus gives you the error shown above.
The easy way to fix this, is to relaunch the Fiddler application which will act as system proxy again (make sure you set the option in "Fiddler Options" - "WinINET Connetions").
Close the application gracefully and it should fix the connection path for you.
Or, you could manually clear the proxy settings by going to:
Internet -> Options->LAN setting->ConnectionsUncheck the option of
Use a proxy server for your LAN. (You should see a proxy like 127.0.0.1:8888, which is the default listening port for Fiddler.)
Source Fix "The proxy server isn't responding" Problem Caused by Fiddler
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