@Harbinder2 once the connection has been down for an hour the online Service Checker in the My Sky app run overca mobile connection should be sble to tell you if this is a fault Sky already know about if it isn't it should, after running you through a few tests offer to bookman engineer to check your line.
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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
