Do you get ever increasing CPU / Memory Usage?
You can track that with a simple integration or addon (System monitor - Home Assistant)
Worth to check this out.
Happend to me some time ago, and seems to be happening to some people as well currently:
In my experience, the load was every increasing, until the core just failed.
It was always possible to bring it back up manually without a restart of the full machine by logging into the CLI via SSH and restart the Core.
Several reasons, that may happen… it wasn’t an easy troubleshooting. I ended up making a VERY minimal config.yaml just to test. Also take note in your config of the line:
default_config:
This includes several components which get activated by default. If you delete this line, you may have to add them one by one. Check the linked thread for some more insight.
For me it was once an issue with my network config, and then another time i had issues with the rtsp stream component.
Examples:
automation:
history:
logbook:
map:
mobile_app:
person:
ssdp:
sun:
system_health:
updater:
zeroconf:
Hope that helps!