@Michellenell thst is a very common issue in many houses where the layout and type of construction means a single wifi source cannot provide usable wifi in every room. The solution is multiple wifi sources assuming the hub cannot be movedcto a better position.
Sky sell an add-on called WiFi Max tgat offers up to 3 wifi extenderscif speeds do not reach a guaranteed speedcin everybroom see https://www.sky.com/help/articles/sky-wifi-max alternatively you can buy your own equipment to use in place of Sky's WiFi if you prefer.
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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
