I am tired of constantly rebooting the Arris modem that Suddenlink rents me to route my wifi signal. Since I only buy internet and phone service from them, all of my video is over wifi to my smart tv. When I search for Suddenlink compatible wifi capable modems I get a lot of confusing information. Basically, I would like to find a decent modem for around $75 that will broadcast my wifi throughout the house for my smart tv and other devices. I am not really sure if I only need a wifi router or a modem....there is a cable router first in line from the coax that gives me my internet and phone, but although the modem next in line has a bunch of lights for phone, etc. I think it is only serving as a wifi router which means all I need is a router to ethernet plug into the main cable router and then send out my wifi. I am 70 years old so in no way tech savvy and would appreciate any help so I can stop paying $120 a year for the wifi rental and get more consistent service for my streaming video.