When the Identity Server is installed on a separate machine, the server gets successfully imported into the Administration Console, port 8443 listens on the loop back interface but fails to communicate with the Access Gateway.
To workaround this issue, do the following:
Open the server.xml file
Linux: /etc/init.d/novell-tomcat5 restart
Windows Server 2003: \Program Files\Novell\Tomcat\conf
Windows Server 2008: \Program Files (x86)\Novell\Tomcat\conf
Change the IP address given during the Identity Server installation.
Restart Tomcat
Linux: /etc/init.d/novell-tomcat5 restart
Windows: net start "Apache Tomcat"