Hello Michal,
Maybe we forgot these, in their official documentation “Example of MQTT Operation with SSL” they mentioned CA certificate, CC certificate, CK certificate.
AT+QSSLCFG=“cacert”,2,“cacert.pem”
AT+QSSLCFG=“clientcert”,2,“client.pem”
AT+QSSLCFG=“clientkey”,2,“user_key.pem”
It seems we are close to understanding where the problem is. Can you please list all the files stored in UFS with the command below and share the results?
AT+QFLST=“*”
Best regards,
Diego from HiveMQ Team