Hubitat C7 constantly crashing

🛎️ Get Help Devices
1

About two weeks ago I updated my Hubitat C7 after being away for about a month. The update seemed to run fine until it got stuck on the "rebooting, you will be redirected to home page when done" page in my browser. I tried to re-open the home page and got an "unable to connect" message. I rebooted my device and it seemed to run fine for a few page clicks in the Hubitat home page until I got that "unable to connect" page again, which I assume means that the hub has crashed and needs to be rebooted.

Ever since my hubitat C7 will constantly crash and need to have its power cycled to work again. Most of the time it barely lasts a few minutes before crashing. Sometimes it will last one or two days then will become unresponsive again. When this happens all of my automations cease to function and I can't connect to the Hubitat Home page. The light on the device is green as if nothing was wrong.

So far I have tried rolling back the update and doing a soft reset followed by a backup restore. None of it solved the issue. What else can I try to fix it?

2

Is the green light on the whole time, or does it change color once there is a "crash".

Do you have an address reservation for the Hubitat in your router? Did you try a private window in your browser?

I would try to get to the Logs tab as soon as it boots, and see if there are any errors present. Maybe also see if you can go to the Apps Stats and Device stats in Logs tab and see if something is chewing processor time.

2 Likes
3

Welcome to the group!
Are you using DHCP or Fixed Address? I would try resetting the network settings back to DHCP using the reset on the bottom of the unit. It is the one square hole, and needs to be pressed 7 seconds. That resets the settings back to DHCP. Then set a reservation on your router. Check the network settings for speed (Settings - Network Setup) Set the speed for fixed 100. Good luck!

2 Likes
4

This sounds more like a network issue, rather than a hub issue. The next time your hub's interface is unreachable, try accessing the Diagnostic Tool. If the Diagnostic Tool is also unreachable, then likely it's a network problem. If you can access the Diagnostic Tool, then the hub's database might be corrupted and you could try a Soft Reset to see if that helps.

3 Likes
5

The green light remains steadily ON even after it crashed.

I have address reservation done. I have tried a private window and it doesn't seem to make any difference.

I normally can make it to the logs just before it crashes. Sometimes it lasts longer, sometimes it doesn't.

I have rolled it back to an even older version and have done the network settings reset described by jameslslate. After a few reboots of the device crashing almost immediately it seems to have been running stable for a bit longer now. I have set the speed fixed to 100 mbps as well. We'll see how long it will last now.

6

Maybe you should have @gopher.ny look at the engineering logs and see if he sees anything of interest.

1 Like
7

Can you PM me your hub's UID from Settings - Hub details page? I can take a look.

3 Likes
8

Just an update: It has been running fine ever since I reverted to a previous version. The logs seem to indicate that a third party Abode alarm driver was causing the crash with the newer version.

1 Like
9

My C7 hub is doing this as well now. The web interface stops loading and routines stop running, but the diagnostic page loads just fine. A reboot gets it working again for just a little while.

10

Have you done a soft reset yet?

What do your logs say?

Do you have a rogue device?

Do you have a rogue app or integration?

You need to investigate these things to narrow down the cause. Start with the first on my list and we can help you work through them all.

1 Like
11

Have you done a soft reset yet? - No. I thought this wasn't really needed any more based on forum posts

What do your logs say? - Which logs?

Do you have a rogue device? - Define rogue.

Do you have a rogue app or integration? - No new apps were installed before this started, just a half dozen platform updates.

12

I went back through the past logs and searched for "error" and I came up with a bunch of logs like this:
2022-07-18 11:34:19.364 pm errorcom.hubitat.app.exception.LimitExceededException: Event Queue is Full on line 90 (method processEvent)

dev:6522022-07-18 11:34:14.290 pm errorcom.hubitat.app.exception.LimitExceededException: Event Queue is Full on line 90 (method processEvent)

dev:6492022-07-18 11:34:08.637 pm errorcom.hubitat.app.exception.LimitExceededException: Event Queue is Full on line 90 (method processEvent)

dev:6512022-07-18 11:34:03.560 pm errorcom.hubitat.app.exception.LimitExceededException: Event Queue is Full on line 90 (method processEvent)

dev:6562022-07-18 11:33:58.483 pm errorcom.hubitat.app.exception.LimitExceededException: Event Queue is Full on line 90 (method processEvent)

dev:6552022-07-18 11:33:53.406 pm errorcom.hubitat.app.exception.LimitExceededException: Event Queue is Full on line 90 (method processEvent)

dev:6542022-07-18 11:33:48.332 pm errorcom.hubitat.app.exception.LimitExceededException: Event Queue is Full on line 90 (method processEvent)

13

Do this

All logs, base logs, device stats, app stats

Anything from low battery to spamming the mesh. It may not be generating an error but overwhelming the logs or the mesh which can cause a crash..

What existing apps do you have installed. Again, it may not be throwing errors but overwhelming the hub

1 Like
14

I checked the logs and found those full queue messages i posted above. I also discovered that my ecobee integration was sucking up lots of time. I decided that i really don't use it within hubitat, so i removed that. I did a soft reset just now. I also discovered that my zooz zse44 had a dead battery. I have replaced that and looked into installing devicewatchdog(that was another fun journey with the recent bundle manager switchover). I'll keep an eye on it for the next couple of days. Thanks for the suggestions.

15

Found it. That is one that is common to break a hub when the app is misconfigured.

2 Likes
16

Also post your z-wave details page

1 Like