@Tony Thank you for the answer I have already done that. But every time when I turn on my TV, I see this annoying "There is a new update" reminder. What should I do in order to block that?

Hello, I'm trying to block incoming connection that wants to update my TV. How can I do that? I want to block these 2 addresses: authorize.nettvservices.com firmware.nettvservices.com to access my...