I can see traffic from Chrome and Firefox just fine, but I get nothing from IE.
It was previously working, a month or so ago, on IE10. I've tried re-installing Fiddler and IE10 (not at the same time).
It worked while I was on IE8 but I don't want to use IE8.
It didn't work on IE9, 10, or 11 today.
I've tried starting Fiddler as admin / elevated.
When I load the URI http://ipv4.fiddler:8888/ in firefox I see "Fiddler Echo Service..."
When I load the same URI in IE I get "this page can not be displayed..."
I can get it to work briefly by manually setting winINET proxy to 127.0.0.1:8888, (and when this setting is in place http://ipv4.fiddler:8888/ works too) but if I touch the "capture" button in Fiddler at all (as if to enable or disable, either way) it stops capturing and doesn't restart until I manually re-enter the winINET proxy setting.
This would be semi-OK but I need to chain to another upstream local proxy and as soon as I enable this Fiddler stops capturing again. I should note I use the same setup with the two proxy apps on another machine with no problem.
I'm guessing *something* installed on this machine is preventing Fiddler from editing my winINET proxy setting, but I don't know what it could be. AFAIK I have all the same software on the other machine which is working nicely. Can you maybe suggest how I could go about tracking down the offending bit of software, if there is one?