@Robyn2601 Varefully check thst the green plug on the pigtail cable is properly connected into the bottom of the new ONT. if it is it sounds like the weld the engineer made in the external connection box between the incoming fibre and the fibre pigtail may have failed.
Call Sky report tge fault and they will get an engineer back to sort the issue.
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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
