Over the last two months I have tried three HP printers and today a new Brother printer, all WiFi, and cannot use them with my MAC computer unless it is connected via a USB cable. Problems occurred because I felt the software needed upgraded on the printer, but when I bought two new ones in the last month, I was shocked to discover, neither worked without a USB cable between the MAC and the printer.
Surpirsingly, Brother support could not help. HP support was dreadful. Many seem to have similar problems but I am unsure how to get around them. APPLE suggest ignoring vendor software and using the Software Update on the MAC. However, unless the cable connection remains, then the printer is not visible in the scanners and printers window. Disconnect the USB (which is meant to be a temporary connection in a wireless setup) and the connection disappears altogether.
The Brother printer, MFC-J591ODW, is meant to be air-print enabled. However, even the iPads cannot detect it.
I am at my wits end. Should I take back another printer to the support. Please can someone help.
Check your router. It might be dropping the connection to the printer when it goes to sleep. Does the printer have a ethernet port, can you wire the printer to the router.