C8 Pro hub
Since latest update, all my Matter devices disconnect from everywhere evry single night. Thus all my automations, including a swimming pool pump, dont work. Am I the only one having this problem ? Even after restarting the hub, the router, all Alexa things and All Apple things, it still does it.
What type of home networking equipment are you using? I would recommend turning off any features of your router/access points that try to “automatically optimize” your WiFi network every night. This type of “feature” can wreak havoc with devices that would rather have a stable network.
Just one hypothesis 
If you want to test if the last Hubitat update is truly the cause, please use the Diagnostic tool to revert to the previous Hubitat firmware that your hub was running.
Well everything was fine for months on ! My router is NOT set to restart every night. I have a very good router, I dont have a shitty "box" frm ISP's, just a Modem from them, everything else is top level and mine. And once again, everything was fine for months and the only thing that changed was Hubitat update. As well, I notice a very large dis-interest from all major Home Automation reviewers to Hubitat, and frankly I do understand why, as we have only "corrections" from Hubitat and Nothing really New. I still resist to move to Home Assistant, but Hubitat makes it more and more tempting.
Some of us use both, as they each have their strengths and weaknesses. Ultimately, if it is your network causing your matter over wifi (i assume over wifi) devices to go offline, the issue will be waiting for you should you move to HA.
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I built a quick driver to monitor matter and alert me of stuff...
Great, glad to hear that things have successfully been reliable in the past.
Alrighty - however, that is not what I asked. "a very good router" and "everything else is top level" does not accurately describe your home network equipment. Brand names and models are much more helpful.
Also, what I asked was whether or not your home networking equipment performed any sort of automatic WiFi optimization? Some systems like to change WiFi channels every night, and possibly power levels, to attempt to provide the user with the best performance. However, this often leads to issues. Even if this was working fine for months previously, something may have changed (like a neighbor's new WiFi system causing yours to make changes every night) that has caused your system to change its behavior.
Have you tried the above suggestion to see if the version of Hubitat firmware really makes a difference or not?
Not sure how this has anything to do with troubleshooting the Matter stability issue you're having.
Are your Matter devices "Matter over WiFi" or "Matter over Thread" devices? If "Matter over Thread", then Hubitat is relying on your Apple or Amazon device(s) to perform the role of being a Matter "Thread Border Router". Thus, the problem could be with one of those Apple or Amazon devices. Also, please make sure to use the vendor's app for your Matter devices to update their firmware. Matter is a maturing platform, and thus many devices are still getting regular updates to improve their reliability and performance.
I had one of these "boxes" for a year and used it with Hubitat and matter over WiFi devices with zero issues. Equipment doesn't necessarily mean anything. If you want to brag on your equipment, just brag on your equipment. Don't take it out on a great community member just trying to help you. This community and the support you get is second to none.
This is not what Dan asked. He asked is it set to optimize each night. Such as scan for a less crowded channel and switch automatically, among many other things that are possible. If your matter devices are matter over WiFi they are almost certainly 2.4ghz and do not like network changes. If you have not, like Dan suggested I would pick either channel 1, 6, or 11, turn off auto scan and optimization, and see if that helps.
The reason you see more YouTube people pushing Home Assistant has nothing to do with the platform compared to Hubitat. It is due to the fact that HA can be ran on basically anything and not sold on dedicated equipment. This means it has a larger user base world wide, which means they are going to get way more views, which means they are going to make more money. That drives it. If you don't believe me look at HA compared to Homie. Same scenario.
I have both HE and HA. As stated above they both have strengths and weaknesses. As many frustrations you have with HE you will have that many or more with HA.
I have both. Some were initially connected via Apple, some were initially connected via Amazon, and some were imported from Aqara hub and SwitchBot Hub as Matter devices. I still have to inquire as to what happened, but they are back now after restarting everything : Hubitat, My router, Apple devices, Amazon devices. I just dont want to have to do that too often and obviously not every other day !
Also I dont have any network optimisation that I know of.
Well I do have way less frustration with Hubitat than I had with Smartthings, which is definitely a piece of junk.
Glad your stuff is up and running and hope it stays that way. You have a great day.
Do you have a TP-Link mesh WiFi setup? Like a Deco mesh?
I do have a TP Link AX 6000 router, so its not a meshed system.
No. I am truly happy your stuff is up and going. I am simply stepping aside from the conversation. I hope all stays well for you.
I have no experience with one of those.
I do know that their Deco mesh systems do "auto-optimize" and by doing so, do not play nice with automation systems that use frequencies which overlap with the 2.4 GHz WiFi bands. Meaning zigbee and Thread.
That is far from a "top level" router. I am not a snob, I use TP Link myself, but even in their lineup, this is a midgrade router.
Do you have the TP Link Antivirus turned on? That caused me issues, and nothing would fix it but to turn off that feature.
Are you sure you don't have the router do a daily/weekly reset? I think that caused me as many issues as it fixed.
While we are looking at things, did you change any networking settings in Hubitat?
Have you reserved IP in the router for your Matter devices, as well as Alexa and other Matter coordinators?
How is your C8P connected? WiFi or Ethernet?
Agreed. Seems to be reasonably built and fortunately permits configuration of WiFi parameters that can impact the function of zigbee and Thread devices.
@user4117 - here's a screenshot of the relevant portion of the AX 6000 manual, along with some suggested changes:
I recommend setting the 2.4 GHz channel width to be 20 MHz, and 5 GHz channel width to be 40 MHz. Do not set the 2.4 GHz channel width to be 40 MHz.
Do not leave the 2.4 GHz channel selection at Auto. Choose a wireless channel that will not interfere with Zigbee and Thread. Please read this article on WiFi, Zigbee, and Thread coexistence from Silicon Labs.
Set the transmit power to be "Middle" or "Low". On my Unifi mesh, I set the 2.4 GHz transmit power to be low.
I have two zigbee mesh networks: one with 105 devices and the other with about 30 devices. They are both stable and performant. I do take care to ensure that my WiFi and zigbee channels are spectrally well separated, and that the 2.4 GHz WiFi channel width is 20 MHz. The 2.4 GHz WiFi channels used in my mesh are channels 1 and 6. I use zigbee channels 20 and 25.
Lan connection
Download the Hubitat app
