I recently signed up for Xfinity internet, 200mbps service. I purchased a Motorola MB7220 modem that is advertised to handle a 343mbps and a Belkin N600 Dual Band router, advertised to handle 300mbps connection as well. However, I am getting max 25mbps wireless and 77mbps wired on my PS4 via the router. I called Xfinitiy and was told that everything seems to look good on their end and that things must be bottlenecking at my modem or my router. I was able to connect my PS4 directly to the modem and determined that it is not the modem. What's going that is causing such a dramatic drop in speed after a router is connected?