Help troubleshooting Nexus Player

I got my player about a month ago. After about a week, I started to get the audio drop issue. I contacted support, and they just had me RMA it. So I got my new device, and no Audio drops. :D However I have other problems. I can not cast to the device, it doesn't show up in my list of devices in my browser, and when I try from my phone, it instantly disconnects. Also every time I try to watch a video on Netflix I about 1 second of video before an error says it can't play this title, try again later (AIP-703). I worked with Nexus support and got no where, so I went rogue. Downloaded 6.0 marshmallow and flashed my device, it loaded up, but The Netflix app wouldn't load, and I did not try casting. So I wiped the device and installed 5.1.1 again, and back to the same issue. Looking for any advice. to help clear this up as phone support is next to useless.