When you set up the printer on ethernet, first set a fix ip address in the range of your computers, also be sure your network has a workgroup name and that is also entered in the printers network software. Robert
I never had to set up the laptop/printer with an ethernet cable. All I did was set my desktop to share printers in network sharing center and she was able to print through the router and my PC. I was so simple the first time I did this. This problem is new and only started when I bought this new printer. It's an all in one deal, print, scan, copy. It works fine connected with USB.
