My C-7 hub is freezing randomly (after a few minutes or a few hours). I don't see anything in the logs that would lead me to the root cause of It. The diagnostic tool is not accessible but the led is still green. Frozen means no automation is working and the interface is not accessible. I have removed as many used application as possible. Here is what I have in the logs :
Thanks for your support @ aaiyar @ rlithgow1 : hub is using a static IP address. Fixed 100. Not sure about jumbo frame : most of the devices are zwave or zigbee (except Ecobee thermostat, Tasmota 11 temp and switch, Sonos, Alexa and Google home devices, a smart oven connected through the cloud, a sum pump monitor).
I have a daily back-up. What is really strange is that I have a daily back-up even If the hub is supposed to be frozen :
I'm in the same boat and trying to figure out why; green LED, hub locked, clean logs, no automations, no access, not even pingable. I've addressed/confirmed all the items listed here except the Auto vs. Fixed 100. Has this been known to cause a similar issue and is fixed 100 recommended?
That depends. There were some Netgear devices that caused trouble with the hub in the past and setting 100 fixed was a work around. I have had good luck with using switches from TP-Link and Linksys to connect my hubs with them set to auto negotiate. I believe auto negotiate is the only way to get full duplex, but I think it needs to be set to auto on the switch as well (but I only know enough about these intricacies to be dangerous).
There is no device for which I enabled jumbo frames. I have no new hardware connected : same modem-router, same raspberry pi, same unmanaged switch. The only new thing I have is a Zigbee Sinope thermostat.
I don't see anything obvious in the logs, no app or driver is using an excessive amount of CPU JasonJoel.
The hub is not overheating. In the basement at the same place for 2 years.
Not sure where to look, wecoyote5 have you been able to find something on your side ?