Mosquitto (MQTT) - Client connection from [ip address] denied access by tcpd

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I had problems with Mosquitto as well. My shellies did not report mqtt messages any more. I tried many things but it did not work. Finaly I found a report at stackoverflow:
sudo service mosquitto stop
sudo rm /var/lib/mosquitto/mosquitto.db
sudo service mosquitto start
after I did this all worked perfectly again :slight_smile:

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