@IanWhite-_ are measuring speeds on devices connected by WiFi to the hub? If you are variations are not unusual especially if tge hub is a few rooms away. WiFi speeds depend on the layout and type of construction of your home.
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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
