I have two new Sony 4k TVs. They're Smart TVs. YouTube is on the app schedule; however, this channel from day one has shut down after about 5 minutes of viewing. About two or three weeks ago, all that the remote brings up is the YouTube logo and nothing more, just a static YouTube logo, and no loading of content. On one of the TVs a prompt tells me I'm not connected to internet when indeed I am. In addition, it's just YouTube which is problematic, all other apps like Amazon, and HULU work fine. One thing that's interesting is one of the TVs actually has a dedicated YouTube button on its remote, which also brings up a YouTube logo on the TV screen but nothing beyond that. What's wrong here?