Further, Sonoff Zigbee devices do not do well far from the hub. I personally haven’t found a repeater that helps those particular devices. To expand on that, a repeater that helps Aqara devices, didn’t help the Sonoff Zigbee devices. But close to the hub, the Sonoff Zigbee devices have been very stable.
Aqara are hit and miss joined directly to HE as mentioned. Some stay paired better than others. All have issues directly paired at some point unless really close to the hub. That seems to help them stay stable, but add one incompatible repeater and all bets are off.
Add an Aqara device to their own hub or a ConBee2 on Home Assistant and they are solid. You can bring Aqara devices joined to HA back into Hubitat Elevation with this driver/app
