DOCUMENT:Q259353 05-JAN-2001 [iis] TITLE :Must Enter Password Manually After You Toggle Password Sync PRODUCT :Internet Information Server PROD/VER::4.0,5.0 OPER/SYS: KEYWORDS:kbOSWin2000 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Services version 5.0 - Microsoft Internet Information Server version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== In Internet Information Server (IIS) version 4.0, when you clear the Enable Automatic Password Synchronization check box (or the Allow IIS to control password check box in IIS version 5.0), use the Browse button to browse to the IUSR_ account, and then click to reselect the check box, the password field is blank and you must enter the password manually. However, when you just clear, select, and clear this setting, and you do not browse to the IUSR_ account, the password field retains the entry, and you are not required to enter the password manually. In addition, if the password is not entered, the Event Viewer logs may contain the following error message: The server was unable to logon the Windows NT account 'IUSR_' due to the following error: Logon failure: unknown user name or bad password. CAUSE ===== By default, when in IIS you clear the Enable Automatic Password Synchronization or Allow IIS to control password check boxes, you are required to enter the password manually and anonymous authentication will fail until you do. MORE INFORMATION ================ The following information details what occurs when you choose whether you want IIS to control the anonymous user password: 1. On a new installation of IIS, the following metabase entries are created: - AnonymousPasswordSync = 1 - AnonymousUserName = "IUSR_" - AnonymousUserPass = "" 2. When you clear the Enable Automatic Password Synchronization or the Allow IIS to control password check box, the AnonymousPasswordSync value is set to 0. However, because the IIS metabase already contains the AnonymousUserPass setting, you are not required to enter the password. 3. When you next select the Enable Automatic Password Synchronization or the Allow IIS to control password check box, IIS sets the AnonymousPasswordSync setting to 1 and then deletes the AnonymousUserPass setting from the metabase. 4. When you clear the Enable Automatic Password Synchronization or the Allow IIS to control password check box again, the AnonymousPasswordSync value is set back to 0. However, because the metabase no longer contains the AnonymousUserPass setting, you must enter the password manually. REFERENCES ========== For additional information, click the article numbers below to view the articles in the Microsoft Knowledge Base: Q253204 PRB: Error Message: The Server Was Unable to Logon the Windows NT Account IUSR_machinename Q184730 Password Sync and IIS 4.0 Return FrontPage Error Message Additional query words: iis 5 4 ====================================================================== Keywords : kbOSWin2000 Technology : kbiisSearch kbiis500 kbiis400 Version : :4.0,5.0 Issue type : kbprb Solution Type : kbpending ============================================================================= 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.