Josiah

@HJianBo faced same issue with CocoMQTT 2.1.6, I cloud send msg to mqttx client , but I always didn't receive any message,the didConnectAck method not response.

@MelnykovDenys @PrLion Firstly, you need to use openssl command ,in order to convert pem to der. 👇🏻 `openssl x509 -outform der -in certificate.pem -out certificate.der` And There is my sample...

@PrLion @matthew-ely I guessed the ‘ getClientCertFromByteArray ’ method only support ' two way certificate ' with P12 file ，so I ignored it. Otherwise，I want to connect mqtt broker by...

@MelnykovDenys thanks，you are right ！I printed the mqtt5. sslSettings parameter, gave me nil value . Now, do you have any new breakthroughs?

Same issue for me on 2.1.6. how to fix it ?