@Susan102 sounds like the TV is getting insufficent wifi signal from your Sky hub. Ideally you would use an Ethernet cable from the hub to the TV but if that is impractical you would either nedd a wifi booster or buy a piwerline networking kit which uses the mains wiring yo carry the data.
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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
