For some reason I've been having problems about once or twice a week over the past month. I use Alexa for most of my commands but also when it happens my dashboards won't load saying can't find hub. For example last night I did my standard "Alexa Goodnight" which uses Hubitat to turn off all the lights. Alexa did it's confirmation beep like all was well but lights didn't turn off even after several attempts. I tried to connect to my dashboards and couldn't. I rebooted my Hubitat and it took about 15 minutes until everything was working again.
Same thing happened a few days ago using Alexa to turn on my living room lights.
I know not a lot to go on but any suggestions on how to track down what's going on when I have this problem and to figure out if it's Alexa or Hubitat? At this point I have no idea.
How did you reboot the hub?
I would first try cleaning up and dashboards you don't use regularly. Eliminate any dashboards that have ALL devices. Trim dashboards down to items you need regularly.
Try disabling any apps that you don't use regularly. Similarly disable and rules you don't use regularly.
The staff are aware of some slowdowns and there are efforts to eliminate things that are discovered. In the meantime, set up a nightly hub reboot.
A hard off can corrupt the database. You might want to consider doing a soft reset and restore a downloaded backup. Soft Reset - Hubitat Documentation It only takes a few minutes and if any of your issues were related to a corrupted database this would correct that.
What type of switch are we talking about in Alexa? Is it connected directly to Alexa or is it connected through Hubitat? Because, if it's connected through Hubitat, once you pull power, you will no longer be able to turn that outlet back on, because Hubitat is powered off.
I know a hard off isn't recommended but I recently had surgery and just wanted the lights off! The Hubitat has been having problems before the hard off so that didn't cause them. I did do a soft reset and restored from yesterday's backup so I'm back to before the hard off.
I've had Alexa say something like "Can't communicate with Hubitat" before but these problems she gives the confirmation beep with no error - just nothing happens. These problems aren't triggering any rules in Hubitat just turning lights on/off. Maybe next time it happens I'll check the Hubitat logs to see if anything in there.
You are in for a lot of detective work. Clean up things I suggested in my first post. You will need to eliminate as many things that aren't the cause and hopefully expose something that is.
I would contact support@hubitat.com if you hadn't already.
I probably have a boring system compared to most. Less than 10 Sengled bulbs and one zwave switch. The rest are some automation rules and virtual devices.
I came from Wink and my first few months with Hubitat were great but the last month a bunch of intermittent problems have been popping up.
Just an hour ago the web admin was taking 20-30 seconds per page and now is fine without rebooting the device.
The symptoms you describe sound very similar to ones I experienced a couple of days ago. Ironically, just a couple of hours after commenting in another thread about how well my system has worked, I was hit with 15- 30 second lighting delays, Alexa timeouts, and excruciating difficulty navigating the UI to try to troubleshoot. Then, it was as if the hub caught up and everything started working again, only to slow about a half an hour later.
Long story short, I was able to figure out that one of my switches had gone crazy, ignoring my settings for power and energy reports.
After excluding and factory resetting the Inovelli Red LZW30-SN, everything has been great.
Might be something to check if your z-wave switch has power/energy reporting.
I learned relatively early on that checking the logs is a good first step to figuring out why the system is slowing down. That said, it is not always obvious why there are slow downs. Sometimes Hubitat will be super quick, and sometimes it slows down to a crawl...
As for switches going crazy, I have been seeing the same thing this morning - one of mine was going crazy with Power Reports:
Here's a short sample:
Log
dev:11282020-04-06 08:53:14.442 infoOutside Front Lights: Power report received with value of 4.9 W
dev:11282020-04-06 08:53:12.631 infoOutside Front Lights: Power report received with value of 5.1 W
dev:11282020-04-06 08:53:00.489 infoOutside Front Lights: Power report received with value of 4.9 W
dev:11282020-04-06 08:52:58.640 infoOutside Front Lights: Power report received with value of 5.1 W
dev:11282020-04-06 08:52:57.560 infoOutside Front Lights: Power report received with value of 4.4 W
dev:11282020-04-06 08:52:55.526 infoOutside Front Lights: Power report received with value of 5.1 W
dev:11282020-04-06 08:52:48.508 infoOutside Front Lights: Power report received with value of 4.9 W
dev:11282020-04-06 08:52:39.987 infoOutside Front Lights: Power report received with value of 5.6 W
dev:11282020-04-06 08:52:24.514 infoOutside Front Lights: Power report received with value of 4.9 W
dev:11282020-04-06 08:52:23.128 infoOutside Front Lights: Power report received with value of 5.1 W
dev:11282020-04-06 08:52:10.622 infoOutside Front Lights: Power report received with value of 4.9 W
dev:11282020-04-06 08:52:08.468 infoOutside Front Lights: Power report received with value of 5.1 W
dev:11282020-04-06 08:52:04.442 infoOutside Front Lights: Power report received with value of 4.9 W
dev:11282020-04-06 08:52:02.619 infoOutside Front Lights: Power report received with value of 5.1 W
I've tried configuring and refreshing, doing a soft reset, setting the threshold to 50% to no avail. Ended-up doing a hard reset by pulling the power "tab" at the switch and that seemed to resolve the problem.
I did check the logs and nothing in here with it.
