@Priscilla60 the most common issue is WiFi interference from neighbours' WiFi networks. You can try rebooting yiur Sky hub when it is affected as it will then try to find the least congested channels to use. However it is also sensible to consider improving tge WiFi coverage in your home by getting an extender which can comecas part of Sky's WiFi Max bundle https://www.sky.com/help/articles/sky-wifi-max
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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
