If you're using the print server in your router for printer sharing, you need to set up a standard TCP/IP port, then set up a new printer with your existing printer driver and the TCP/IP port. Do this in each computer that your want to share the printer with. How to do this depends on your particular router. Mine is SMC Barricade 7004ABR. If you're using the same one, I can give you detail instruction on how to setup your print server.