The first thing to check - do you have the optional ethernet card for this unit? The earlier models had an ethernet card as an option - this is frustrating! If you are unsure, print a settings report (Press and hold the Continue button down for several seconds.) and look under installed options on this report to see if there is a ethernet card listed. You can also view the current IP address that the pritner is receiving on the network settings report; Menu > System Setup > Reports > Network Info. Best of luck, mardwal

Thanks for your explanation! It's quite useful, It is just the solution for my problem.