Resolution:
Below are some of the possible reasons (along with the resolutions) why the TIBCO Adapter(TM) for LDAP 5.4 can fail in design time:

1. Incorrect Design Time credentials

- Verify if the 'Server Type' is correctly chosen.
- Confirm the User DN, Password, Hostname and Port Number from your LDAP Admin.
- If the adapter User is under any groups or organization, then please provide the User DN in complete.
- Necessary permissions have been provided to the User.

2. Inappropriate SSL Certificates used to generate the keystore (if using SSL)

- Re-confirm the certificates provided by your LDAP Admin