I have the same problems, title not available now, lose activation code etc. This is just after the long Smart Hub update and numerous previous updates. Samsung has a good picture but their software and related components leave a lot to be desired. I'm getting sick and tired of having to input my email and password to keep reactivating Netflix. Like others, my ROKU box stands at the ready so I can watch TV when I want to without all the smart tv hassles.
Talking to Samsung support is useless. When I first got the TV I spent hours with them to try and get the wireless connection to stay connected. In the process I realized that the adapter they use is an inferior model or their driver is inferior. The TV couldn't stay connected with the signal I had but good ole ROKU never missed a beat. Regardless, I got the connection to work without the help of Samsung. It took a new router and a range extender to get Samsung to do what ROKU does by itself in regards to signal sensitivity and amplification.
Samsung needs better programmers and wireless design engineers or they need to buy better quality parts. As noted, they also need to work closely with Netflix, not to mention the need to respect their customers more. The least they could do is let the smart hub remember the Netflix login for us. That would eliminate some of the hassle. Of course, the Smart TV isn't smart enough to do that and keep the info secure.
I would suggest that all of us having problems go to Amazon and tell our stories in as much detail as possible. A loss of business and a stained reputation might make them more concerned about their wireless quality and the quality of their apps, especially Netflix.
