I have 2 databases that I need to connect to. I can easily connect to them in the application.conf file like so:
db.default.driver=org.postgresql.Driver db.d
I had the same problem and I fixed it by specifying the server name at the Model.Finder level.
So in your case, in your User class, you should have something like :
public static Model.Finder find = new Finder("secondary", Long.class, User.class);