Most nights arround 9:30pm Aust EST, Homey goes offline.
The LED ring is still rainbow. It is connected via the ethernet power cable. It has been stable for weeks. My router app shows it is offline and I cannot get it back online via this app. The only way to fix is by disconecting power for 30 seconds then reconnecting. The firmware and software are up to date.
Is it always around the same time? Maybe some device (f.e. your router) is running automatic updates and Homey somehow doesn’t reconnect properly? When Homey goes offline, can you still access other devices in your network?
Another check (if you did not do that already) could be to have a look via the Insight monitoring if you see any drops or spikes in the Memory or CPU of the device around that time.
You could also check if any app is having spikes around that time there as well.
Do you have a cloud backup subscription? If so, have you enabled automatic backups? If so, have you checked what time the automatic backups are created?
In order for backups to be created, a certain amount of free storage space must be available. If there isn’t enough free storage space, problems may occur during a backup.
9:36 went offline again. Tried disconnecting the Ethernet cable for 30 seconds, did nothing. Took numerous long power offs to get it back online tonight.
Still a mystery. Very open to any further ideas on what could be causing this.
Just a thought (not that likely): could it be that the IP lease of your Homey (assigned by your router) expires after a day, but is not properly refreshed, causing the Homey to lose its IP?
Not sure whether you have assigned/reserved a fixed IP in your router’s DHCP server for your Homey. If not, you might want to try that and restart your Homey after making that reservation.