Fiddler not capturing traffic from browsers

Question

I\'ve been using Fiddler for quite a while, but all of a sudden it no longer captures internet traffic. I\'m on Chrome 29 and Fiddler v4.4.5.1. I\'ve checked all filters a

Answer 1

Same problem here, in all browsers (IE, Chrome, FF). Upon startup the Fiddler Log tab showed the following:

"!WARNING Fiddler has detected that system or domain Group Policy has set ProxySettingsPerUser to 0. Unless Fiddler is run Elevated (e.g. Run As Administrator), it may not capture traffic from Internet Explorer and other programs. Current process IS running Elevated."

I'm in a huge corporate environment, with no connection to or info about group policy changes; it apparently just got applied one day. Thanks, bureaucracy :)

Anyway, that led me to messing around with IE proxy settings. Changing it from Automatic to 127.0.0.1 on port 8888 (the default configured port in Fiddler) worked. Kind of a pain, though, because I have to set it each time to override the group policy setting. And then I get cert errors, which is a known thing because Fiddler uses it's own, untrusted cert . . . and the beat goes on . . .