Distributed Password Authentication Checkbox Is Unavailable

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Distributed Password Authentication may be enabled for access to the Membership Directory Service (more accurately, Distributed Password Authentication is enabled for authentication to the LDAP server) using the command line administration tool. The syntax is as follows:

PMADMIN SET LDAP /ID:<membership server instance ID#> /LDAPAUTH:<auth type>

• Where <membership server instance ID#> is the instance number of the membership server, underneath which the LDAP server chosen to be managed is found. (A list of membership server names and their instance ID numbers is available by using the following command: PMADMIN LIST INSTANCE).
• Where <auth type> is an integer value for the type of authentication method. The valid integers are as follows:
  

        1=Anonymous
        2=Cleartext
        4=NTLM/DPA
  
  						

These values are OR'ed together so any combination may be configured by setting the sum of the integer values (7=all types). Note that 4 enables Challenge Response, which is interpreted automatically as NTLM if the Membership Directory Service is configured for Windows NT authentication mode, and Distributed Password Authentication is configured for Membership authentication mode.

NOTE: When you enable the Distributed Password Authentication via command line, it should display as enabled from the Microsoft Management Console graphical user interface (GUI); however, to disable the setting, you must use the command line.