recently I upgraded from an '11 17" Pro to a top of the line '15 13" Air. At home I have a wired lan - not wifi - so that means I have to connect the Enet cable via a USB port. I have a USB expansion/Enet adapter all-in-one that works great. Except - when my Air sleeps and then wakes, the internet connection is lost and I have to unplug and re-plug the SUB expander. Dis/re-connecting the Enet cable to the USB expanders itself doesn't work; the expander with the Enet plugged in needs to be disconnected and reconnected to the computer at the port itself. BUT the drive I have connected to the USB adapter does not disconnect. Is there any reason why this happens and how I might remedy it? Thanks!