I think anyone who's worked with Team Foundation Server for significant amount of time has run into this or a similar variant of the (TF31003: Either you have not entered the necessary credentials or your user account does not have permission to connect to the Team Foundation Server at https://***.visualstudio.com/. Ask your server administrator to add the appropriate permissions to your account) error message at least once. I ran into it earlier today while trying to connect to the online Team Foundation Service (http://tfs.visualstudio.com) using Visual Studio 2012 running on Windows 8.
As the error code to be a generic one and covers a wide variety of issues, it took a bit of trial and error before was finally able to narrow down the issue that was ailing me:
http://stackoverflow.com/questions/11034882/tfs-in-visual-studio-2012-under-windows-8
As suggested, clearing all the cookies in IE resolved the issue for me.
Here is another link to the exact problem/solution that I found after the fact:
http://caioproiete.net/en/error-tf31003-connecting-to-tfspreview-from-visual-studio-2012/
As the error code to be a generic one and covers a wide variety of issues, it took a bit of trial and error before was finally able to narrow down the issue that was ailing me:
http://stackoverflow.com/questions/11034882/tfs-in-visual-studio-2012-under-windows-8
As suggested, clearing all the cookies in IE resolved the issue for me.
Here is another link to the exact problem/solution that I found after the fact:
http://caioproiete.net/en/error-tf31003-connecting-to-tfspreview-from-visual-studio-2012/
