I have a new Macbook Pro purchased October, 2015. When it was first set up, it printed fine with my Brother HL-3170CDW printer. A couple of weeks later, the printer Queue would tell me the printer is not connected. Sometimes I could turn the printer on and off, then it would print something and that was it...not again. Very inconvenient. I have called Apple Support, Brother Printer, Netgear and my ISP and nobody seems to be able to help me. I deleted the printer and put it back in and that did nothing. I have unplugged and plugged everything back in, nothing. Not sure what to do now.