Faults usually happen when the machines come back up after lightning ⚡

After a power cut, errors happen easily.

When lightning causes a power cut, the power at the site drops all at once, and the power to the routers, the home gateways and the VPN equipment goes off too.

And then, at the moment when the equipment starts up again, a fault tends to happen.

So after lightning or a power cut, we often get phone calls from customers.