Answer:Hello, landlord, you can check whether there is a problem with your own network first, and then determine whether the TV is connected to the network. If there is no problem, you can after-sales.
Answer:After watching these two TVs, it seems that they are the same internally except for the different model names, appearance interfaces, etc.Personal preference
Answer:Both models use LED backlight technology, saving energy and long life.Which one is better depends on your budget and the demand for image quality.E510DE is preferred if you want to pursue top experience and are willing to spend more money;If the budget is limited and details are not required, R5100DE is a real benefit