SIMCOM7600e-H issue

Hi Werner Thanks for your response , I am using SIMCOM7600e-H for connecting MQTT with aws server in windows operation system. Am using TX and RX lines connecting to the serial terminal by using AT commands am trying to connect aws server . Thanks and Regards Sam

Hi I am trying to connect AWS with MQTT server in teraterm using AT commands , I have entered certificates and checked the certificates after entering and after that , i have given my client ID and respected MQTT url after entering am getting this error "Open Session failed "log.txt. what am i missing this please give suggestions