EJB lookup fails when the DNS changes using remote-outbound-connection on JBoss EAP 6

Issue

• There is two JBoss EAP servers communicating with each other through remote EJB3, server-A and server-B.
  The server-A calls the remote EJB using remote-outbound-connection with the following configuration:

<outbound-connections>
                    <remote-outbound-connection name="ejb-outbound-connection" outbound-socket-binding-ref="serverA2serverB-socket" username="srv2srv" security-realm="ejb-security-realm">
                        <properties>
                            <property name="SSL_ENABLED" value="false"/>
                        </properties>
                    </remote-outbound-connection>
...
<outbound-socket-binding name="serverA2serverB-socket">
                <remote-destination host="server-B" port="4447"/>
            </outbound-socket-binding>

After a outage in the server-B we had to change the DNS entry to point to the backup server. This change should be transparent to the final user but it is not happening, the JBoss should be restarted to the new configuration take effect.

• There is the following parameter configured: networkaddress.cache.ttl=30 in t he $JAVA_HOME/lib/security/java.security. configuration file.