@Ge14 sounds like your hub has lost connection to the exchange. Run the Service Checker in the My Sky app using a mobile connection which should tell you if Sky arecalready aware of an issue affecting your line. If they arent give them a call so they can get your line checked out.
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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
