My dad wants me to convert his current printer which is not-wifi and hardwired (usb-cabled) to his main desktop computer which is running Windows 7..to a WIFI printer.. However, he just got a win 8.1 laptop and wants to be able to print wireless from the same printer. He currently has a cable modem that is connected to a wireless router. I tried connecting the printer via USB to the cable modem (tried following a youtube video) but have had no luck setting up a local connection that way... Any assistance would be greatly appreciated. Thank you.