@18Day if this happening on multiple devices that have connected in the past it is likely someone has changed the password manually. You can reset the Sky hub back tomits default settings by pressing and holding in the reset pin on the black hubs until the power LED flashes then releasectge pin abd the hub will restart with the settings on the label. If you have the newer white hub its the WPS button on the sude which you hold in for 30 seconds.
You may want to consider chaning the admin password to stop this happening again see https://www.sky.com/help/articles/find-and-change-your-wireless-password
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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
