I'm very limited in setup knowledge.
We use router for mobile devices mostly. Would like to be able to start streaming movies. I have a VUDU account that I currently don't use because movies always freeze up when watching.
What type of modem should I use if I separate the two devices? Don't want to rent one from Cox (current provider).
I have a router than I got long ago and I can't remember the logic for getting it. But my modem I got only a year or two ago because I got tired of paying TWC to rent one each month. On TWCs website it listed which modems would work so that's how I decided. Assuming Cox does the same I'd see what their website recommends and then maybe get a little nicer on than that so that it doesn't go obsolete too quickly.
That said, I don't know if a movie freezing up is a result of a slow modem or instead the results of an Internet connection that isn't fast enough. If your Internet connection isn't fast enough I don't think it matters what kind of modem you have.
The cable companies rely on people not paying a big chunk up front for a piece of equipment because it seems like a lot even though it saves money in the long run. So when I bought my modem a couple years ago I had to swallow a bit hard and shell out like $96 or so for it. But at $8-9 per month savings I'm probably already $100 ahead and getting more so each month.
I have TWC for Internet connection but for nothing else and I have no TWC equipment in my house. It feels freeing not having to rely on them or their equipment. As long as they keep my Internet juice flowing I can handle the rest.
The morning of the first full Saturday of college football season I got onto my Roku and ordered Sling TV (about 20 cable channels, including ESPN and ESPN2, for $20 per month). It took about three minutes and voila, I had the channels. After football season was over, it took three minutes to cancel I did it all right on my TV screen. No fees to start or stop Sling TV, just start it and pay $20 per month then stop it for no charge. It's liberating.