Sorry for some confusion but this is an area that I am not too familiar with. I did nothing other than install the new modem and went through the Comcast online activation. I started doing speed tests and found the irregularities. Everything works very well but I was trying to understand why wired speed through the router is slower than a direct connection to the modem. The modem is an Arris TM822. I don't know if it is considered a router.