Error Message: 401.1 Error (Unauthorized: Logon Failed)

• Microsoft Internet Information Services version 5.0

SYMPTOMS

When you try to log on to an Internet Information Services (IIS) 5.0 computer, the following error message may occur:

401.1 Unauthorized: Logon failed

CAUSE

This problem may be caused by a number of reasons, however, the following are the most common:

• The users credentials (the username and password) are not correct.



• The user account may not have the right to log on to the computer interactively (the "log on locally" right).

RESOLUTION

Check the username and the password of the user to make sure that they are correct. If this is correct, be sure the user has the "log on locally" right granted to it.

To verify user rights, do the following:

1. Open the Local Security Policy tool from the Administrative Tools folder.



2. Select Local Policies, choose User Rights Assignment, and then click the Log On Locally user right.

MORE INFORMATION

See the Internet Information Services 5.0 documentation for more information about authentication. This documentation can be found at http://localhost/IISHelp.

Additional query words: IIS 5

Keywords : kbWinOS2000
Version : winnt:5.0
Platform : winnt
Issue type : kbprb