@Suzanne__ the light indicates the hub has lost connection to the line. Using a mobile connection run the service checker in the My Sky app to see if Sky are aware of an issue affecting your line. If they aren't call them to report it.
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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
