less than a minute
In versions < v0.9.6, only users specified in the ACL can publish to the MQTT broker. In higher versions, this is disabled by default (but should be enabled back again when using in production). To change the ACL configuration, please follow this tutorial.
Open UMHLens and go to Helm —> Releases —> United Manufacturing Hub
Search for ACL until you find the line with AclConfig
There you can adjust it. To allow unrestricted access, add in the first line pattern #
Press save and restart the vernemq pod by killing the pod.