To set the DisableLoopbackCheck registry key, follow these steps:

1. Set the DisableStrictNameChecking registry entry to 1. For more
information about how to do this, click the following article number to view the
article in the Microsoft Knowledge Base:

281308 <http://support.microsoft.com/kb/281308/>
(http://support.microsoft.com/kb/281308/ ) Connecting to SMB share on a Windows
2000-based computer or a Windows Server 2003-based computer may not work with an
alias name

2. Click Start, click Run, type regedit, and then click OK.

3. In Registry Editor, locate and then click the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa

4. Right-click Lsa, point to New, and then click DWORD Value.

5. Type DisableLoopbackCheck, and then press ENTER.

6. Right-click DisableLoopbackCheck, and then click Modify.

7. In the Value data box, type 1, and then click OK.

8. Quit Registry Editor, and then restart your computer.