@Christine6969 difficult to advise with so little to go on. If your system has worked before run the connection test in the My Sky app over a mobile connection to see if there is a known fault if there isnt call Sky to report the issue.
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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
