This should be all plug and play. Whether or not you can connect directly to your ISPs line is questionable. If its cable then thats a no but what you can do is use the cable modem just as a means to get to the internet. Its called DMZ which basically will connect the AC5300 directly to the internet but that's all on your ISPs router. The one thing in your list that wont work is the USB printer. You need a network printer that connects either via an Ethernet port or wireless to use in that capacity.