Plugging my laptop into my modem (Netgear CM1000) yields the 300mbps that I pay for. But when I reconnect the router (AC1750) to the modem, and the same computer to the router via ethernet, I get only about 180mbps. Why such a substantial drop? It's a cat6 cable from the modem to the router, cat5e from the router to the laptop. Wifi speeds directly next to the router are about the same, and obviously drop with range. Is a 100+Mbps drop through the router normal even if not using wifi? Any help is a appreciated!