LDAP paged results not supported (either your PHP version lacks support, you have configured Moodle to use LDAP protocol version 2 or Moodle cannot contact your LDAP server to see if paged support is available.)
From my Moodle server I can run openssl s_client -connect server.name.here:636 and it shows the certificate clear as day. I can check the cert on the AD server against the Moodle server cert and they match. I'm using LDAP v3 and PHP 7.0.33. PHP does have the openssl module loaded, so it should support SSL. At this point, I'm not sure what's wrong, but would appreciate any advice or suggestions.