@Debmarkaa if some of your devices are connecting as they should the issue with the devices are not could becsimply there is insufficent signal in the area they are placed or they are not networked correctly. The former is very common especially in older homes with solid internal walls while sometimes you can helpmby moving the hub so it is as cntral as possible out in the open on a surface rather than the floor often you just need a WiFi booster.
The latter can be frustrating but read this post I made earlier https://helpforum.sky.com/t5/Broadband/Broadband/m-p/5257914#M561212
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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
