Jamie Posted December 5, 2019 Report Share Posted December 5, 2019 Has anyone successfully connected to a MQTT broker on Amazon MQ ? I keep getting "1 - Connection refused, unacceptable protocol version" in the Broker Struct Return Code. Thanks, Jamie Quote Link to comment Share on other sites More sharing options...
NoamM Posted December 9, 2019 Report Share Posted December 9, 2019 Dear Jamie, * Did you set your DNS configuration? * What is your PLC model? * Can you send me your CA file? Quote Link to comment Share on other sites More sharing options...
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