Replying to mark TOTAL OF ALL PREVIOUS POSTS IN THIS DISCUSSION as the SOLUTION. But please continue to post any questions/comments.  
The goal of this discussion will be to provide a central location for all things LDAP with IDPA/PPDP. This will be a work in progress and we welcome questions and contributions from all. Lets get started..... How to initially configure IDPA/PPDP to use external LDAP: [URL] We can see below which components are compatible with LDAP. Appliance Configuration Manager (ACM) No Search (Data Protection Search) Yes System Manager (Data Protection Central) Yes Protection Storage (Data Domain) Yes Backup Server (Avamar) Yes Reporting and Analytics (Data Protection Advisor)   Configuration for IDPA System Manager and DPSearch are configured easily from the acm dashboard. Under General Setting in lower left, click the Settings icon and then Configure external LDAP (above KB gives details).   Procedure to Configure LDAP Settings on Avamar, Data Domain and DPA for Authentication:    
LDAP configuration and issues