You're using the right port (:8123) and protocol (http://no s)?
homeassistant
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Also check that the server IP address didn't change on the router.
Power cycle the device?
I have been a few times. I connected a screen and nothing seemed out of the ordinary. One error message popped up though, about not starting overlayfs. It might be that my SD card has corrupted all of the sudden. Trying a restore onto a new SD card now.
Thanks for the assistance. I ended up restoring a backup onto a new SD-card and everything started working again. I think the SD-card died on me while I was away.
However, my system continued to stall once in a while, so I decided to get the Home Assistant Green in order to update my setup and go with something more official. It's just too troublesome having constant issues when everything relies on this one box!
Can you share the log output? Alternately, if running from Docker, can you run in the foreground and see if any error message shows up?
Sounds like it's not actually running. Restart the hass server and check the logs, which is the only place you'll see if a dependency is preventing it from starting.