@Dypevag at 4am the most probable cause is overnight maintenanceby Openreach if so the service will return by morning. Sky's lines open by 8am so you can call after then but check if they already know about an outage affecting your line in the Service Checker in tge My Sky app before doing so.
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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
