@Karan+mall a lot depends on what the wall is made of and what else is in the way a block psrtition wall shouldn't be a problem but a solid brick or stone wall is a different proposition..However as a thin layer of metal foild will totally block the wifi signal as of course would a radiator so as a first step see if moving the hub higher might help.
If you would like help do post some details of your set up.
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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
