On Mon, 28 Jan 2019 17:14:38 +0000
"dennis@home" wrote:

On 28/01/2019 16:57, Rob Morley wrote:

Ah, that seems easy - get a small computer (Raspberry Pi Zero) to
ping somewhere reliable like google.com, and if it fails for a few
minutes at a time it can operate a relay to interrupt power to the
modem.

https://youtu.be/boMHq9PBy9M

https://www.ebay.co.uk/itm/Sonoff-S2...E/263808543030

But if I were to take that path I already have a spare ESP8266 with
on-board relay, and a few power supplies kicking around. I think I have
an original RPi Zero somewhere too - I'd rather used wired networking
for this job.