Team Foundation Server and Windows SharePoint Services SP2

If you install Windows SharePoint Services SP2, you may receive a TF31002 (Unable to connect) error. This is because SP2 disables NTLM authentication on the default site virtual server in favor of using Kerberos authentication.

To use a script to enable NTLM authentication on the virtual server, follow these steps:

1. On the application tier computer, open a Command Prompt in the root folder of the system drive and change directory to the inetpubadminscripts directory (for example, C:inetpubadminscripts).
2. Type the following command, and then press ENTER:

cscript adsutil.vbs get w3svc/1/NTAuthenticationProviders

Note   The virtual server ID number of the Default Web site in IIS is 1.

1. To enable NTLM authentication on the virtual server, type the following command, and then press ENTER:

cscript adsutil.vbs set w3svc/1/NTAuthenticationProviders “NTLM”

1. Restart IIS.

For more information, see this KB article: http://support.microsoft.com/?id=832769