@paul101 improving speed to your hub wont necessarily improve the WiFi dignal reaching the puck. Ideally you would use an Ethernet cable but the alternative is to improve the WiFi signal. First check that both the hub are out in the open not hidden behind tge TV or on the floor. Beyond that you nedd to consider either paying for Sky's WiFi Max bundle which can provide WiFi extenders or buying your own home WiFi equipment.
When connected properly Sky Stream is as stable as satellite services.
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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
