Since a few weeks I do have problems with my Aqara Zigbee sensor and Conbee II stick.
I do have a ConbeeII USB stick ( firmware 26720700) with my Pi 3.
This has worked flawlessly for more the a year.
A few weeks ago there was one Aqara multisensor that gave problems ( did not worked anymore) and I tought low battery.
After replacing the battery the sensor did not returned.
All my other Aqara sensors are still OK.
So I bought a new sensor and hoped my problem was solved.
But now I cannot add a new sensor anymore.
When I try to add a new sensor via Deconz it timeouts and do not find the sensor.
When I wait for a minute a sensor appears in Deconz but only the Humidity sensor and indicates that it has a low battery. No other sensor ( temperature, pressure,…) appear.
Even after updating to Homeassistant OS 8.2 the problem still exists.