I have exatcly the same problem. Re-install of Netflix or wiping app data helps only to set L1. After playing any movie Netflix is automaticly loging me out and after another log-in L3 shows up and it works only with SD quality. I assume that this problem is very well known in Asus but no solution so far. I bought this phone 2 days ago and hopefully it's still possible to return it. I wanted to give a try to Asus phones but what I can see that it's not worth it. Support is very poor
