TF30063: You are not authorized to access Team Foundation Server


Andrew Beier  SOLVED: I ran into the same issue of TF 30063 on v15.3.5 right after changing my network AD password (enterprise policy). Previously you would be prompted to updated your user credentials for on-prem TFS, however at some point in one of the recent VS patches this appears to have stopped being the case. Even after deleting the connection, closing VS, and going back in and trying to add again the credentials wouldn't change.
The issue was that my previous credentials were cached by the Windows OS for the TFS server. While some people might have had success wiping out the AppData temp folders, that is not required.
You need to update the credentials through Control Panel on the Windows OS.
For me on Windows 10: Close VS. Go to Control Panel (with small icon view)-->User Accounts-->Manage your credentials (on the left column)-->Select "Windows Credentials"-->Scroll down to the "Generic Credentials" section and look for your TFS server connection. Expand the pull down and click "Edit". Enter in new network password. Reopen VS and everything should work again.


https://developercommunity.visualstudio.com/content/problem/93366/tf30063-you-are-not-authorized-to-access-visualstu.html

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