I have 8 Aqara door/window sensors on my Hubitat C8 pro that have worked great for months, and they all just stopped responding two days ago around the same time.
Around that exact time i had added in a Sonoff 4-button smart scene controller that required a custom driver and was a bit problematic to add so i went through several attempts to add it which included rebuilding my zigbee network multiple times as well as re-adding the Sonoff device in “ignore repeaters” mode. I do not know that either of those two things are the cause of this problem, but including them here for context.
I cannot get my door sensors operating again. Everything in the device information, preferences etc. looks normal. Battery is good on everything. They just do not register any open close actions anymore. Any ideas? I really don’t want to have to take them all off, remove them and re-add them to the hub again
Aqara's old generation battery-powered devices are very picky about other Zigbee devices in the same network, and there is no definitive solution to this issue. If you have a lot of Aqara devices, the best approach is to isolate them in a separate Zigbee network (an old HE hub as an example).
There's no need to remove them; don't do that. Instead, try to pair them again in place (hopefully they are easily reachable) without deleting them. You may need to attempt pairing multiple times until they start responding.
In addition to @kkossev's excellent info and suggestions, you can try shutting down your hub (wait for red LED), pulling power, wait 30s, restore power.
That will reboot your Z-Wave and Zigbee radios, normal reboot of the hub will not do that. That can help w/radio-related problems.
Other option is shut down and pull power and leave your hub unplugged for 15-20m, then plug it back in again. That will put your Zigbee devices in "panic mode" which causes them to regenerate their neighbor tables when the hub reboots and could help them develop more stable paths to your hub. No guarantees, and some Zigbee sensors might need to be rebooted (pull battery).
