Add their wifi hardware in the PS4 to the list of things not fully committed to. (at least I'm blaming that over it just being software)
My Xbox One, every single tablet in the house, my Gaming PC upstairs, my daughters' Xbox/Wii U, our Apple Laptop, my PC Laptop, our Apple TV, and our phones can all stream Netflix/Vudu wirelessly.
My PS4 in our bedroom (which is closer to the router than half that list) "Can't Connect to Netflix", "error", "error", "error". Finally does connect....buffers...buffers....buffers..plays for 15 minutes, buffers. Vudu = Can't make it through a single FREAKING movie without some kind of lockup or streaming error.
Why not just require the system be wired Sony?
Note: Wired internet is NOT an option where I live now. My entire internet access, which works darn near perfect on every device in the house, is based off of AT&T wireless internet through my Velocity device. I get speeds between 25MB/s and 160Mb/s on the regular. Never drops out either.
Tried it with 2 PS4s now and it's basically the same result.
I ended up just hooking my darn laptop to the TV in the bedroom so we can watch Netflix at night. Got fed up with.