My UN65MU8000 keeps forgetting the password for my WiFi. I have to intentionally try to erroneously log onto another WiFi router and then go back and log into my WiFi. Once logged in it stays connected for about 24 hours. This is super annoying. It started doing it about two weeks ago and have had the TV for about 6 months ago. I did buy it refurbished and is surly outside of warranty now.