Constant drops and stuttering while watching Twitch streams

This has been a very consistent problem since getting Cox, was never a problem on the same equipment when I was in a different area on a much slower Charter internet connection. So no, this is not a bandwidth/speed issue. I speedtest consistently at ~25+ down.

Trying to watch streams from twitch (www.titch.tv, en.twitch.tv, beta.twitch.tv, etc) is a total crapshoot, more often than not resulting in a partial connection at best (signing into chat is a crapshoot), with the video/audio feed constantly pausing and giving Twitch's "buffering" circle. I've tried various fixes including the ones from this thread:
http://www.reddit.com/r/leagueoflegends/comments/192e4a/after_2_years_of_unwatchable_twitch_streams_i/

And this one:
http://www.teamliquid.net/forum/viewmessage.php?topic_id=375952

I've tried using your DNS, Google's DNS, and another known-good DNS.

It has nothing inherently to do with Twitch or their bandwidth, as I have tested with my phone/tablet independently byt swapping from Wifi to mobile data: going down your connection it is consistently bad, on my TMobile connection it is rock solid.

Do you have a solution, or is this traffic shaping/routing just how you do business?