We use fiddler to reverse proxy requests to out dev environment back to our development machines while working So normally microsite1.dev.mycompany.com resolves to 192.168.1.639 but when fiddler is capturing it resolves to 127.0.0.1 so that we can debug and do development on specific microsites without having to have our entire environment replicated locally. This is great until fiddler stops capturing unexpectedly, which isnt always obvious. It would be useful if a warning could pop up, or an audible alert would sound to let us know that something went wrong and the capture had stopped.