@SharAnt check if other decices are working if they arent then checkmthe hub as it may have lost connection see https://www.sky.com/help/articles/hub-lights-explained-start for what to do.
If its only the TV then try rdbooting it by disconnecting the power until the power led goes out. Thst often clears faults.
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65inch Sky Glass, 3 Sky Streaming Pucks, Sky Ultrafast + and Sky SR213(white Wifi Max hub) main Wifi from 3 TP-Link Deco M4 units in access point mode
