slow socket connection

I would like to create a TCP/IP connection to a scales in the local network.
In Java 1.5 it takes 4-5 seconds while telnet can build up the connection immediately.
What can be wrong?

My code is the following:

long time = System.currentTimeMillis();
InetAddress addr = InetAddress.getByName("192.168.0.20");
System.out.println(System.currentTimeMillis() - time);
// running time: 90 ms

time = System.currentTimeMillis();
Socket socket = new Socket(addr, 8000);
System.out.println(System.currentTimeMillis() - time);
// running time: 4617 ms

How can it be made faster?

Thanks, Peter