@JaneG84 sounds like you need extra wifi kit beyond the free Sky hub. Sky sell an add-on called https://www.sky.com/help/articles/sky-wifi-max which can come with up,to 3 extenders but they wont guarantee wifi to a camera outside your home but hopefully if you extend the network sufficent signal will enable the camera to function. Alternatively you can buy one of the many whole home wifi set ups.
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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
