HA suddenly inaccessable, then came back online some days later. How could that be?

Hi Guys,

I have a HA installation on a Raspberry PI. I mainly use it to integrate curtain motors to Hubitat. The other day, out of the blue, the Raspberry PI /HA instance became unresponsive and inaccessable. After some initial trial and error I did not manage to access it. So I mentally started prepare for a new HD and a new install.

I then today I just happened to noticed that the log files for the curtain motors were still being updated in Hubitat. That would mean HA is running and sending updates to Hubitat. I then tried to run the curtain motors and low and behold, everything was working again,

What do you think happened there? Where would you start to investigate what happened?

Cheers,

Start looking at the logs.

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