Aqara Temp Sensor WSDCGQ11LM wont pair with Zigbee

It must have to do with the fact that you have topics defined

Try to add

ssl: true
certfile: fullchain.pem
keyfile: privkey.pem
broker: true
allow_anonymous: true
mqttusers:
  - username: xxxx
    password: xxxx
    readonly: false
    topics:
      - '#letterbox'
      - '#test/test/test'
      - '#'

And restart your mqtt broker

No changeā€¦

I appreciate your efforts and are thankful for your help, whats the other way of doing this? Is it worth trying that?

I donā€™t know anymore. I use a standard mosquitto myself.

I experienced similar problems. Al screens where equal to yours. Finally the most simpel solution was just to add it again to HA. A simpel reset of the Aqara switch to turn it in to sync mode again and then it was again discovered (with the same parameters) only this time working. Maybe give it a try?