C8 hub
recently updated to 2.4.3.123 but was happening on platform 2.4.2.160 also
ethernet connection
DHCP IP reservation set on router
Supplied power block
Google fiber router to unmanaged network switch to hubitat
Not exactly sure what jumbo frames are but have no server on the system.
Approx 35 devices. No zwave. A couple wifi. mostly zigbee.
A couple of weeks ago I noticed my hub go offline and unresponsive. Blue solid light. Not able to connect through PC, phone or diagnostic :8081.
I unplugged it and plugged it back in. Everything started working like normal.
Then it began happening more frequently. Now, every 1 to 2 days the same thing happens. Hub unresponsive and I can't connect to it even through diagnostic. I pull power cord, wait and plug it back in.
I have also done an advanced reboot>rebuild database a few times recently to see if that would help and it has not.
My device logs typically show less than 0.5% and app times less than 1.0%
Past logs don't show any errors. A few "warns" from inactive devices.
I haven't added any devices in probably more than 6 months
I haven't touched the network in a year.
Any advice on what steps to take?
Just did a soft reset. Hub is actually on a UPS already. Is there any reason other than the hub shutting down abruptly during a power flicker or outage?
I'll start by saying I'm by no means an electrical or electronics expert...
But both spikes, dips and cuts to the power supply have the potential to damage certain components in many household electronic devices, which I would expect the HE hub to be part of that group. Years ago I had the modem component in my Netgear router die after a storm / power outage, with the sales guy selling me the replacement saying it can often be when the power is actually coming back on after the outage when components like that can be affected. It wasn't until the second one died that I decided to get a UPS .
Many UPS' can help to smooth out the peaks and troughs, plus provide a consistent power feed by using a battery backup. A UPS that offers the ability to monitor it's state, e.g. whether it is on battery power or mains power can also help in identifying a loss of power and either automatically initiate a graceful shutdown of the HE hub, or at least offer you a chance to do this manually.
My first impulse would be to swap out the Ethernet cable. Seasonal temperature fluctuations mean more calls to our help desk, and they don't make cables (or memory cards, or motherboard headers, etc.) like they used to.
I've gone back to hitting things once on the side like we used to with TVs from the 1970s.
I understand. I have had sensitive equipment fail like that as well. I had read about abrupt shut downs being bad for the hub so I put it on the UPS that my home theater system is on. It is pretty good and will power the entire system for quite a while during brief outages. With that being said, we haven't had a real power outage since 6 or 8 months ago, so the hub should never have seen any abrupt shut downs or startups in recent history. Thank you for the explanation.
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