Hi everyone. Hopefully this is the right place to ask this. I know that some people have been experiencing a similar issue to mine, but I haven't yet found anything exactly like mine. So I figured I would give it a shot. You'll also have to excuse my poor choice of wording for some concepts I don't quite understand fully.
Very happy with my Wii U, but the Netflix quality is super subpar. I typically only get about 240/288p. I have managed to get 720p one time since getting the console in December. I have switched the DNS from the default to other options and the MTU from 1400 to 1492 to 1500. I have tried deleting and redownloading the app. I have used several different HDMI ports on my TV. I got a Wii LAN adaptor and used an ethernet cable and didn't get any results. I also turned the Firewall off on my U-verse router and that also didn't make any difference.
My Macbook Pro gets 14.1 Mbps in a recent speed test and the Wii U is getting 7.6 Mbps, which obviously is much slower but Netflix states that it only needs 7 Mbps for Super HD but I have never even really experienced 720p 
I am very disappointed because I love the console but not being able to play Netflix in high quality reliably is upsetting to me.
Another thing, YouTube, Amazon, and Hulu play in very clear HD ://
Thanks again!