FontAwesome does not work for me when I put my app on IIS7 server.
In Firefox the requested URL is encoded to http://l2etest.kema.intra/fonts/fontawesome-webfo
This Answer is not for the above problem But for those who face similar error but due to different reason and land up into this thread.
I faced similar problem but later found that IIS was trying to look for font-awesome woff,eot files in the folder MyIpAddress/fonts/fontawesome-webfont.woof but I had the files in different folder. Moving the fontawesome-webfont.eot, fontawesome-webfont.svg,fontawesome-webfont.ttf, fontawesome-webfont.woff into my fonts folder solved my problem