Had to factory reset the tablet, running Android 5.1 lollipop (& no preinstalled netflix). Google Play new Netflix is not compatible. I've allowed third party downloads in settings, and downloaded compatible 'apk' app through netflix link, but although it's 'installed' it tries to open, but then quits. I wonder if it has anything to do with the fact that once I allowed 'non google play apps', there was a message saying 'allow google to monitor security', to which I clicked OK. Actually Netflix doesn't seem play through tablet browsers either.
Any ideas?