Just starting out problems!

Question

Hi,
i've just started working with RMI, i created a very simple server and client, ran them successfully both on one machine. When i tried on 2 machines on a home network (2 pcs running XP) the client always has a timeout exception when trying to connect to the server. Following is my code for both:
import java.rmi.*;
public interface RMIServer extends Remote
    public void setResult(String s1, String s2) throws RemoteException;
import java.rmi.*;
import java.rmi.server.*;
public class RMIServerImpl extends UnicastRemoteObject implements RMIServer
    public void setResult(String s1, String s2)
        System.out.println(s1 + " " + s2);
    public RMIServerImpl() throws RemoteException
    public static void main(String[] args) throws Exception
        RMIServerImpl server = new RMIServerImpl();
        String serverName = "//localhost/RMIServer";
        Naming.rebind(serverName, server);
        System.out.println("RMIServer running...");
import java.rmi.*;
public class RMIClient
    public static void main(String[] args) throws Exception
        RMIServer server = (RMIServer) Naming.lookup("//localhost/RMIServer");
        server.setResult("Hello", "World");
}instead of localhost i pur the ip of the server when on 2 machines. Is my code wrong or is it something to do with my network and not Java.
Thank you.

Answer 1

Hello,
You mean windows HOSTS file at windows\system32\drivers\etc\ ?
i did more testing, its works on 2 machines but only with one as server, the other client. If you reverse their roles, making the client a server and the server a client, then the client can't connect to the server.
Is some configuration problem of the LAN causing this? I pinged both PC's addresses and they both seem to see each other. Is there some test i could do to determine the cause.
Thank you.