I am using an STM32F407VG and a Quectel M95-R MA module. I am trying to send AT commands to this module and receive responses via STM32CubeIDE. In the APN setting stage, even though my APN address is correct, I am getting a CME ERROR 58. I have not been able to solve the problem in any way. In the later stages of my project, I will be using MQTT, but due to ERROR 58, I haven’t been able to move on to the MQTT stage yet. Could you help me?
“AT” - OK
“ATE0” - OK
“AT+CMEE=2”
“AT+CSQ” - 27
“AT+CREG?” - OK 0,1
“AT+CGREG?” - OK 0,1
“AT+CGDCONT=1,"IP","internet”
or
“AT+CGDCONT=1,"IP","internet","0.0.0.0",0,0” - CME ERROR 58
“AT+CGATT=1” - CGACTT? 1, OK
“AT+CGACT=1,1”