I have the odd fibre outages usually in the night I am guess that something is being done at the back end. I always have to reboot my router after these to get everything working again. The problems is with so many services using the Internet for alerting and other activities, also my phone is IP based If I am not in the house I cannot reboot the router and wondered if anyone has come up with an answer for this.
Ideally a box that has a cellular connection that can also cut power to a device momentarily might do trick but not of course if you have to press a button to reset router.
Amy thoughts