Unable to authenticate with the LDAP server.

Confirm the username and passcode are correct (ePolicy Orchestrator is unable to interconnect to an LDAP server)

Environment
 McAfee ePolicy Orchestrator (ePO) 5.x
 Problem
 You see the following error after you configure an LDAP server by clicking Menu, Configuration, Registered Servers, New Server, and selecting LDAP Server: McafeeCustomer Care 

 Unable to authenticate with the LDAP server. Verify the username and password are correct. McafeeCustomer Care 

 This error can display in the following situations:

•  Creating a permission set 
• Editing the name and users of an existing permission set (the top-right edit link when editing a permission set)
• Handling Policy Duty Rules when using the LDAP browser
• Using the complex synchronization tab when using an LDAP secretary Server to browse the tree

Solution
 To troubleshoot the issue, click Test Connection on the LDAP Registered Server page,McafeeCustomer Care 

 and make a note of the error message.

Possible error messages and explanations:

• Unable to communicate 

This situation indicates that the ePO server can't resolve the LDAP server name provided.

1. Attempt to ping the LDAP server from the instruction line, the server name needs to be a valid DNS hostname forMcafee Customer Care the LDAP server. A NetBIOS domain name does not work.
2. Confirm that the port specified, if any, is logical for the LDAP server.The default port used is 389. Verify that there are no firewalls preventing the communication from occurring.

•  If you use SSL, specify the correct port.Port 636 is typically used for LDAP over SSL.
• If you do not operation SSL, confirm the port number.Not specifying a port defaults to port 389, which is the normal port for LDAP without SSL.

 Unable to authenticate

McafeeCustomer Care situation indicates that the username or password provided is incorrect.

 NOTE: It might also indicate the account being used is trusted only through a one-way or external trust, which is not supported.
Use an record on the Active Directory server itself rather.

If you see an error message other than the ones listed, the user account might not have enough permissions to perform the operations. Try using an account with increased permissions.



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