I just purchased a zoom modem, them shits work great... if you have time warner..
I only have a cable box in the living room and two bedrooms I have none in my master bedroom..
I just use bgol cable, netflix and that damn near covers everything.
and I have access to time warner cable online.. which is fine only they purposely fuck up live sports, lots of freezing and buffering... other than that its fine...
but I have other alternatives for live sports.. I dont have to see that shit in hd...
and I just have hbo and showtime for boxing really...
but yea look into that zoom moden..
they have this zoom router with voip..
zoom router with voip
I had this one for two years now and its fast as hell and never had any problems..
Amazon product ASIN B00C1TSFH8