I upgraded to the C-8 model approximately three months ago. Since then, I've experienced instances where the C-8 became unresponsive, totaling three times, with the last two occurrences happening in the past two weeks. During these episodes, I was unable to access the hub IP or interface.
Comparatively, my previous C-7 model only became unresponsive once during the two to three years I used it. The only solution I've found for the C-8's unresponsiveness is to perform a hard reboot, which involves unplugging the device, waiting for a moment, and then plugging it back in. Additionally, I've observed some unusual behaviors with my Motion Mode Listening automations. The timing of these issues seems to coincide with the onset of the unresponsive problem, though I'm not certain if they are connected. I haven't found anything particularly informative in the log regarding these issues.
A couple of things. First with all the unplugging without shutting down properly you should do a soft reset to ensure the database is not corrupt (which can also cause lockups)
When locked up can you reach port 8081?
What color is the led when it locks up?
Do you have jumbo frames enabled anywhere on the network?
@yashvind in addition to above questions, could you please confirm how the hub is connected to your network (wired or wireless) and what network equipment are you using, as well as (any) network security software.
It is connected over ethernet but I use a mesh network. So the ethernet to C-8 is coming from one of the access points. No other specific security software on the network.
What about whatevertheipaddris:8081 instead of a connical name?
That means the platform isn't loaded. Make sure you set a DHCP reservation in your router for the hub. Press the network reset switch on the bottom of the hub with a paper clip of toothpic for at least 7 seconds (it will be the only round hole out of all the square ones)
Wait to see if the light turns green. If it remains blue, go to whateverdhcpassignedipis:8081 and do a soft reset
That is a very odd behavior that I have not seen before. Generally a hub wouldn't recover from a blue light by simply power cycling it. The next time it happens, can you please send me a private message along with your hub id?
Was your old hub connected in the same way, or is the C8 in a new location?
Will do. I do have an odd behavior with Motion and Mode Lighting app. Not sure if it is related or not. Can I send you details for that, in case it leads into something?
Connected on the same way and in the same location. Have used the same spot, same access point for last few years, including for my old C-7
Just wanted to add that I'm experiencing the same issue with having to reboot my C-8 twice in the last week. I'm unable to access the UI and doing a hard reboot is my only option. The light is blue before the reboot and after green with the UI being accessible. I would appreciate any help with this because the wife doesn't like it when things don't work!
I haven’t but will give it a try if it happens again. It sounds like I’m having the same issue as the original user that posted so I may not be able to access it.
Always hard to tell...there may be basic similarities but the actual issue and symptoms can vary a lot once you get into it.
If you can access via the Diagnostic Tool, best first start since you've been hard-resetting your hub, would be to do a soft reset so you can clean up any issues that may have arisen in your hub's database.
First, choose Download Backups...
Select your most recent backup and it will be downloaded:
Then choose Soft Reset, and at the end of the reset process when your hub boots up choose the option upload the backup you just downloaded:
That will ensure you have a clean database on the hub.
You can also do a similar process right now while you have access to your hub...choose the option to reboot it, and select the checkbox to rebuild your database on reboot:
We share a lot in common. It's fantastic when a voice command to Alexa/Siri works like magic to run an automation smoothly; but when that automation fails, suddenly that same voice command gets all grumpy and decides to take it out on me!
Thank you for the steps for the Soft Reset but one question that I have is I don't have many backups with the latest being Oct 2023. Can I use one that was just taken today before updating to 2.3.8.118? I'm guess not since it needs to be one before this issue started but just thought I would ask.
Yes but restoring the backup will not revert the firmware. The version shown on the backups is more of an FYI. If you want to revert firmware versions that's a different process.
Also, as mentioned above, you can "clean" the database by just using the rebuild option when you reboot. There is no need to do the soft reset / restore unless you cannot access the main UI.
Sorry about that I didn't catch the "Rebuild database on Reboot".. I've created a manual backup but just selected to perform the rebuild on reboot. The manual backup will be what I use just in case I can't access the GUI again but can at hubIPaddress:8081. Thanks again for your help!
