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
The TFS Preview login apparently uses Internet Explorer and thus might conflict with other MS Accounts you are using. Fully clearing the IE cache seems to work for me. After the cache clearing, I get to the correct login screen and may enter my credentials as needed.
I solved this issue by using the browser from within Visual Studio, View->Other Windows->Web Browser; Ctrl+Alt+R
(or * Ctrl+W, W
* in VS versions before VS2010) to navigate to the TFS page and log out of the wrong account and log back in.
For me, the issue was caused by using another live-id to unlock a windows phone for development. Somehow the credentials got cached, it seems.
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.
In VS 2015 it can be achieved by Team Explorer > Connect > Manage Connections and selecting the team project again. In case of there exist more than one account in VS, Team Explorer asks for which account to use to connect to the team project.
Try making Internet Explorer your default browser temporarily.
I get this problem when I am forced by our IT security policy to change my password. After a password change, when I connect to TFS using VS2017, I am no longer authorized to access our TFS server and get the TF30063: You are not authorised to access ...:8080/tfs
error message.
However, if I connect using VS2013, I can connect to the server without problems and the access denied error with VS2017 goes away.