Installed a Sony 850d and had DirecTv set up 4k service. Everything appeared OK but when a 4k channel is selected a message says I am not authorized at this location. Wait or call customer service. I called and they sent out another tech with a replacement HR54-700 receiver. Updates were installed and I still get the same message and no 4k service. When I download a 4k program, it indicates that it is downloading, but on the LIST page, the program title has a red dot with a slash through it and when I try to play, I get the same message. Tech talked to his boss who said it was a DirecTv glitch and MAY be cleared by Monday 12/19/17. I am in the Las Vegas area, and all the HD/SD channels and the locals work fine.