@Aimeeeelou have you reported the issue to Sky? If not give them a call if the service checker in the My Sky app or website is not offering help or indicating Sky know about an issue affecting 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
