Login Error: 'The request failed with HTTP status 503: Service Unavailable'. (NETIQKB45186)

Login Error: 'The request failed with HTTP status 503: Service Unavailable'.

Cannot log into AppManager Analysis Center after installing the Web Service on a Windows 2000 Domain Controller.

Allowing Anonymous access returns error: 'Login Error: User is not authorized'.

The Analysis Center Application Pools have login credentials issue or the password is blank.

Internet Information Services (IIS) Manager shows the ACWebService as 'Service Unavailable'

To determine the cause of your error, review these three different scenarios:

1. Installation of Analysis Center (AC) on a Windows 2000 or Windows 2003 Domain Controller is not recommended.  For more information, see the Analysis Center Readme.htm in the Known Issues section in the root of your Analysis Center 2.0 CD.
   
   
2. For verification of the Application Pools, check if the Application Pools have the correct credentials and are both started.  However, you MUST ensure your AC Service account has all DCOM required permissions to Access and Launch DCOM properties. To verify those permissions, check them at Start | Run | dcomcnfg | Default Security.  Be sure to restart your IIS Services after making this DCOM permissions change.
   
   For COM security in Windows 2003:
   
   Go to Start > Programs > Administrative Tools > Component Services
   Expand Component Services to My Computer
   Right-click My Computer and go to Properties
   Go to the COM Security tab
   
   
3. You may have to reconfigure the Application Pool account and password to access the ACWeb AppPool:
   
   In Windows 2003:
   
   1. Right-click My Computer and select Manage.
   2. Expand Services and Applications | Internet Information Services (IIS) Manager | Application Pools.
   3. Right-click the ACAppPool and select Properties | Identity.
   4. Select the Configurable option and browse to the NT account you want to use for AC, such as the same account used by your AC Service.
   5. Enter the account password and click Apply.
      
      NOTE: If you use a custom user account, that account must be part of the IIS_WPG group, or the application pool will fail (per the IIS online Help).
      
      
   6. Repeat steps 3 - 5 for the ACWEB Application Pool, if it is present.
   7. Restart your IIS Service.

For more information, contact Technical Support at www.netiq.com/support.

Because of a .NET limitation, you cannot log on to AppManager Analysis Center if the Web Service is installed on a Windows 2000 Domain Controller.

Formerly known as NETIQKB45186

Microsoft provides a workaround if for some reason you must install the Web Service on a Windows 2000 Domain Controller. For more information, see http://support.microsoft.com/default.aspx?scid=kb;en-us;315158. You can also search the Microsoft Web site for references to issue Q315158.