Appreciate the answer and the detail. Good luck getting it all resolved.

So it could restart, you wouldn’t know and don’t receive calls because you haven’t authenticated?

Is it in a data centre or someone’s house? If the latter, would they let a stranger in?

Surely they would need a backup and replicate db to so in case of hardware failure they switch over.

Sounds like they could improve their setup.

Too much of a single point of failure.

Nope. Brit here. All those examples were wrong. Yours is valid though.