Sorry to hear about the problems you've been having. You said you re-booted Netflix; does that mean that you deactivated and reactivated Netflix?
When playing any movie, it will popup message like "We're having trouble playing this right now. Please try it later or choose a different title." but you can see the progress bar is finishing the loading at the background. I guess the program time out of checking loading time is faster than the actual time of load. I already rebooted the netflix and reenter my credentials and it still has the error. Ofcourse I check my internet and it is working as always. I also run other apps on that same tv like Pandora and other apps wth internet connection and they were all running well. Im pretty sure it has something to do with the timing inside the program code. Please help.