Login failed [0xAD0B] - invalid credentials supplied to LDAP

Users attempting to login to Novell Messenger get a AD0B error
Users attempting to login to Novell Messenger with a blank eDirectory password.
Error seen in Messaging Agent log: "Login failed [0xAD0B]:<user_name> - invalid credentials supplied to LDAP"

Possible Solutions/Additional Troubleshooting Steps:

• Change the eDirectory password.
• Make sure that the correct LDAP server IP is being used with the /ldapipaddr switch in the startup.ma (Messaging Agent startup file).
• Add, or rearrange the LDAP servers into the /ldapipaddr switch, this is by adding "" and a space in between each IP, i.e."151.155.241.135 151.155.241.132".
• If using SSL, try using none SSL or connecting on port 389 first.
• Create a brand new user and see if they can login.
  

Additional Switches that May Help:
/ldapport - manually configure LDAP port to communicate over.
/dirreplicaipaddr-<ip_address> - Specifies the IP address of an eDirectory replica.
/direuserauthbind - Indicates that you want users to authenticate to eDirectory by using a bind rather then a compare operation.
/diruserforcedirect - Indicates that you want users to use direct access to eDirectory even though you have configured the Messaging Agent to use LDAP access.  Requires eDirectory replica on local machine.

Startup File Locations:
Linux /etc/opt/novell/messenger
Windows: Startup file is located in the Messenger Agent installation directory chosen during installation.
NetWare: Startup file is located in the Messenger Agent installation directory chosen during installation.