I've created three ORDS application servers to connect on the same database.
The apex connections for users and developers works fine on all the servers.
But the restfull acess to generate the json data works only for the first installed server port.
I'm using apex 5.0.2 on Oracle 11.2 Enterprise Edition.
I used ORDS308 on the three webservers pointing to the same db. All are working fine.