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If MQTT Engine or MQTT Transmission client attempts to publish on a topic that is not allowed by the ACL for that client, the connection will be forcefully closed and the client will attempt to reconnect.

For example with with 

R #, W spBv1.0/My MQTT Group/+/PLC

1 the Transmission client can publish the NBIRTH for PLC 1 but is not able to publish the DBIRTH for edge node device D1

For example with with 

R #, W spBv1.0/STATE/MyPrimaryHost, W spBv1.0/My MQTT Group/NDEATH/#, W spBv1.0/My MQTT Group/NBIRTH/#, W spBv1.0/My MQTT Group/DBIRTH/#

the MQTT Engine client is we are not able to send the a rebirth request from MQTT Engine

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