DOCUMENT:Q247593 31-JUL-2001 [iis] TITLE :Err Msg: 401.1 Error (Unauthorized: Logon Failed) PRODUCT :Internet Information Server PROD/VER:winnt:5.0 OPER/SYS: KEYWORDS:kbOSWin2000 kbiis500prod2web kbhttp4011 kbProd2Web ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - 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. If the user account or group that the user belongs to is not listed, then add it. MORE INFORMATION ================ See the Internet Information Services 5.0 documentation for more information about authentication. This documentation can be found at the following URL example: http://localhost/IISHelp Additional query words: IIS 5 ====================================================================== Keywords : kbOSWin2000 kbiis500prod2web kbhttp4011 kbProd2Web Technology : kbiisSearch kbiis500 Version : winnt:5.0 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.