My unit has been out again for over four hours..local area network is okay.
Confirmed. We had an overnight outage at our hosting platform (AWS). It's the second time this has occurred in the last year, so are going to be paying more attention to how to handle this.
We are looking at a number of options, including a completely redundant system on another cloud provider, a network status page that you can check, or automatic alerting (suspend normal connectivity checking, but alert users that there is a system outage and that normal alerting will not be available for some time).