Problem
You get this error in your browser: TF30063: You are not authorized to access https://xxx.yyy/DefaultCollection/.
Urban Turtle needs to communicate with TFS using local web site and this issue occurs because Urban Turtle uses Integrated Authentication and has a name that is mapped to the local loopback address.
When you use the fully qualified domain name (FQDN) or a custom host header to browse a local Web site that is hosted on a computer that is running Microsoft Internet Information Services (IIS) 5.1 or a later version, an error HTTP 401.1 - Unauthorized: Logon Failed happens.
Solution
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: 322756 How to back up and restore the registry in Windows
- Click Start, click Run, type regedit, and then click OK.
- In Registry Editor, locate and then click the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0
- Right-click MSV1_0, point to New, and then click Multi-String Value.
- Type BackConnectionHostNames, and then press ENTER.
- Right-click BackConnectionHostNames, and then click Modify.
- In the Value data box, type the host name or the host names for the sites that are on the local computer (FQDN), and then click OK.
- Quit Registry Editor, and then restart the IISAdmin service.
Ref: https://support.microsoft.com/en-ca/kb/896861
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