Visual Studio Error: (407: Proxy Authentication Required)

Question

I am behind a corporate proxy server which requires credentials. I have been trying to connect to a TFS server (on tfspreview.com) with MS Visual Studio Pro 2012

Answer 1

I was trying to connect Visual Studio 2013 to Visual Studio Team Services, and am behind a corporate proxy. I made VS use the default proxy settings (as specified in IE's connection settings) by adding:

to ..\Program Files\Microsoft Visual Studio 12.0\Common7\IDE\devenv.exe.config (running notepad as admin and opening the file from within there)