Please make sure that the LDAP Server URL, Username and Password that you have entered are correct.
In the Username field, please enter either the UserPrincipalName or DistinguishedName (DN) attribute of any user present in your LDAP server.
Check if the LDAP server URL is accessible from your hosted site and the port 389 is open. { To check this, run this command on your WordPress server: telnet LDAP server URL or IP:389 }
If you are using a firewall, open the firewall to allow incoming requests to your LDAP from your WordPress Server IP and port 389.
If you need assistance or have any questions, feel free to email us at ldap ldapsupport@xecurify.com