My printer is connected to the desktop computer by USB cord. My internet cable attaches to the modem which is connected to the desktop via ethernet cable. Another ethernet connects the desktop to the router which communicates with my wireless laptop. In trying to print from the laptop, the ML-2510 displays as an available network printer, but I am not able to print from the laptop. I've been able to use other printers in this way. I realize it's not a "wireless" printer, but it seems that I should be able to communicate with it thru the router-to-desktop-printer route. The manual talks about it not having a "network interface (ethernet 10/100T base TX)". I'm not sure what this means but I thought it means that it's not a wireless-ready printer. It says I can "buy and install an external wired network interface server", whatever that is. Is this what I need? Samsung doesn't sell one. Where can I get one? Approx. how much $$? Thanks!