Sky tv keeps going off the router red light on conneted

[Richp12]

Sky booter box red light on connected

[HXS65]

Same here with Sky Plus going off about 8pm. Unplugged....waited ..replugged and after whirring around for a bit the screen is blue and a white coloured message says "when the screen goes blank press the home key to get started". It's been 20mins and still not gone blank and no other buttons work.