Issue

Receiving the error "The user name or password specified is not correct.   Provide new credentials" when authenticating using the Provisioning Client UI.

Cause

First, double-check that the credentials used are correct and that they have not been typed in incorrectly.  If the core server is installed on Server 2008 R2, it is likely that the Basic Authentication feature of IIS 7 was not installed.

Resolution

To install the Basic Authentication component for IIS 7 on Server 2008 R2, follow the steps below on the Core Server:

1. On the taskbar, click Start, point to Administrative Tools,  and then click Server Manager.
2. In the Server Manager hierarchy pane, expand Roles,  and then click Web Server (IIS).
3. In the Web Server (IIS) pane, scroll to the Role  Services section, and then click Add Role Services.
4. On the Select Role Services page of the Add Role  Services Wizard, select Basic Authentication, and then click Next.
   
5. On the Confirm Installation Selections page, click Install.
6. On the Results page, click Close.

For more information on Basic Authentication, refer to the following link:

http://technet.microsoft.com/en-us/library/cc772009%28WS.10%29.aspx