Internet Connectivity Issues to certain Devices

[RichCarr]

Since changing to Sky Broadband gigafast FTTP from BT FTTP, several smart devices (LG TV, ring doorbell, etc) keep intermittently losing connectivity, both via WiFi and wired connections. Resetting the device (e.g. Turning off the smart TV at the plug) fixed the issue in the short term, but this issue has occurred multiple times a day since the change to Sky 2 weeks ago.

Additionally, certain services display the issue and others don't. Disney+ and Prime video frequently have connection issues, but Netflix and YouTube have worked even when the other services don't.