@May0105 more likely to be a line issue but the LEDs on the hub will tell you what to do if you follow tge steps here https://www.sky.com/help/articles/hub-lights-explained-start
=========================================================
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
