@San9 very unlikely that the renewal of your contract is the cause of your current issue it is far more likely to be a coincidence. You do not give details of what the oroblem is but as a first step run the tests here Sky Broadband Diagnostiic Test
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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
