@Stw2 WiFi signal strength drops when the signal has to pass through a solid object like a wall the denser the material the greater the loss. Anything made of metal blocks the signal totally. If your home has solid brick internal walls you can have no usable signal 2 rooms from the hub but in a house with plaster board and timber internal walls 2 rooms away poses little problem.
In many homes you therefore need more than the free hub Sky gave you. They will sell you an add-on called WiFi Max (see https://www.sky.com/help/articles/sky-wifi-max) which can provide up to 3 extenders or buy one of the many whole home WiFi kits. Exactly what you need depends on the layout and construction of your home but as a guide in modt homes built in the last 50 years one unit on each floor usally works,
=========================================================
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
