The Java ES Installer does not add a platform entry for an existing directory server installation (DIRECTORY_MODE=2).
Solution Edit the platform service Server List attribute to add the second instance. For example. if the first instance is host1.example.com, it will have an entry such as http://host1.example.com:port|01. If the second instance is on host2 and uses the same Directory Server as host1, use the Access Manager administrator console to add an entry such as http://host2.example.com:port|02.