@Harishp assume you have the black Sky Broadband hub if so the set up does not use the app. One plugged in and powered up the hub should have 4 green lights the important one is the green intternet light. What are you seeing? After that you just connect devices using the WiFi password on the hub's label.
Where are yougetting stuck
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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
