@kakakaka you will need to talk to Sky so they can get Openreach out to sort the issue. To help I am escalating your post to the Sky team who support the forum who should be in touch soon to offer you a private chat session to get this sorted. Keep an eye on the forum as if you miss the message just click the chat icon which will be added to the forum pages for you to use.saving a long phone call.
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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
