Error TF30063: You are not authorized to access … \DefaultCollection

Question

I\'m using TFS Preview (Team Foundation Service) with one of my projects with Visual Studio 2012. I\'m also using an on-premises TFS server with most of my projects. When I

Answer 1

Make sure that Windows Authentication hasn't been disabled for the Website / Application within IIS.

I'm not sure HOW this happened, but I did uninstall Hyper-V today to be able to install VMWare Player and then re-install Hyper-V

Reenabling this allowed everything to work again.