title: nested exception is javax.naming.CommunicationException: abc.com:389 [Root exception is java.net.ConnectException: Connection timed out]
body: <p>I am looking to authenticate google using CAS. And I am getting error as </p>
  
  <blockquote>
    <p>org.springframework.ldap.CommunicationException: xyz.com:389; nested exception is javax.naming.CommunicationException: abc.com:389 [Root exception is java.net.ConnectException: Connection timed out]</p>
  </blockquote>
  
  <p>My LDAP credentials are correct. When I use AD LDAP, I can login successful but if I use Luminis LDAP credentials, we are getting error.</p>
  
  <ul>
  <li>Maven version: Apache Maven 3.3.9</li>
  <li>CAS version: 3.5.2</li>
  <li>Tomcat version: 7.0.70</li>
  <li>Java version: 1.7.0_79, vendor: Oracle Corporation</li>
  </ul>
  
  <p>Any suggestions?</p>
  
  <p>Thank you in Advance.</p>
  
  <p>Bob.</p>