Myself and a mate, as a hobby have run a community wifi network using Locustworld Pro mesh box’s for the last couple of years. We have 3 internet gateways spread throughout the mesh footprint in clients houses.

The only recurring problem we suffer are intermittent router lock-ups. Not very often once/twice a month, - if that. However, they are very annoying and nearly always need a phone call/visit to power-cycle the router which takes 2 min’s max. Then all’s well, till the next time.

We’ve established after exhaustive testing by:- Call’s to ISP/BT, setting changes, security logs, different makes of router (3), weather conditions, traffic load, you name it. These lock-up’s appear to be totally random. We've been beat

Does anyone use, or even know of a system we could use which would say, ping at regular intervals a known ip address and power cycle the router if unobtainable?
I know of systems available which will respond to a phone call, but rely on an administrator monitoring the network, ideally as we both work full time this could be something which would work without interaction?