I have a windows 8 computer with 2 printers connected via a usb hub to a usb port on my computer. I have enabled print sharing on both printers. I have a windows 7 computer that has connected to both printers via the print sharing feature. I am able to send test pages to both printers and all is well until shutting down. After starting the computers the next day, the windows 7 computer shows the printers offline. This is happening daily. Does anyone know what I am doing wrong?