I have connected a Lexmark Optra E312L laser printer to my smc2804wrp-g router (the firmware is up-to-date). The printer status on the router's info page says "OK". It seems that my Macintosh doesn't "see" that there is a printer attached. According to the instruction manual, "Macintosh OS supports Plug-n-Play installation of the printer server service." Does anyone have a suggestion for me to solve this problem?