Hello, I’m trying to establish a connection to an MQTT broker hosted on AWS IoT Core from an HL7800 (v4.6.9) with an Orange SIM card. This requires an SSL connection, so I need to specify certificates. I’m able to connect to this MQTT broker via Python script. The code previously connected to anot…

Unable to establish connection to MQTT broker on AWS IoT Core

jyijyi October 3, 2022, 8:05am 2

You can download stunnel and run in client mode to test your cert and key with mutual authentication.
This can isolate if there is cert problem

Other user found it is working fine:

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