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Tip
Read the user manual Diagnostic - Logs explaining how to use the Logs console in Ignition 

Set the debug level for the io.moquette.spi.impl.ProtocolProcessor logger to TRACE and set the filter of the Logs view to ProtocolProcessor.

If we can see in the logs that the MQTT broker is continually forcefully disconnecting an existing connection to allow another client with the same Client ID to connect, as shown below, you have Colliding Client IDs. If not, we have a Colliding Edge Node Descriptors issue.

If running MQTT Distributor 4.0.13 or earlier, set the debug level for the io.moquette.spi.impl.ProtocolProcessor logger to TRACE and set the filter of the Logs view to ProtocolProcessor.

If running MQTT Distributor 4.0.14 or later, logging will come out as warnings for the com.cirruslink.chariot.server.core.PacketHandler logger.

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ResolvingCollidingClientID
ResolvingCollidingClientID
Resolving Colliding Client ID

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