@Janie15 sounds like the boosters are too far from the hub. Boosters should be installed no more than half way between the hub and where you need the boost as they need a goid signal from the hub to boost.
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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
