I sent keyclone a pm and he said you need one copy of keyclone on each pc for it to work right...

There is a ip address on the top of keyclone and you type that into the connect screen's bar with the port number and click connect and it should pop up on both keyclones on each of the pcs...

You "can" use keyclone on the other pcs without paying for it but you can't set up anything, which it's only 20 bucks and well worth it imo..

Hope that helps