AT+CGDCONT? read command is not providing APN configuration details in response.

RE: AT+CGDCONT? read command is not providing APN configuration details in response.

Michal — Thu, 24 Apr 2025 21:49:17 GMT

I have found the issue I think.

In your #defines you have the command written as AT+CDGCONT

The correct way is AT+CGDCONT (as you have yourself written other places).

Best regards,

Michal

RE: AT+CGDCONT? read command is not providing APN configuration details in response.

sravan.rikka — Fri, 18 Apr 2025 12:31:48 GMT

Tried to configure APN in azure sample code but getting err = 0Xfffffff8 as below. I hope no need to use \r\n at end of the command for “at_cmd_write()” function, even by keeping \r\n also getting same error.

Getting proper response for AT+CFUN?, AT+CFUN=4, AT+CEREG? So “at_cmd_write()” function is working but why giving error response for AT+CGDCONT write and read command?

Am I missing anything please advice.

Code snippet.

#define AT_CGDCONT_WRITE_CMD "AT+CDGCONT=1,\"IPV4V6\",\"internet.m2mportal.de\""

#define AT_CGDCONT_READ_CMD "AT+CDGCONT?"

#define AT_CFUN_OFF_CMD "AT+CFUN=4"

err = at_cmd_write(AT_CFUN_OFF_CMD, NULL, 0, NULL);
sprintf(testbuf, "AT_CFUN_OFF_CMD:%s", buf);
k_sleep(K_MSEC(20u));
//printk("AT_CFUN_OFF_CMD:%s", buf);
printk(testbuf);
if(err < 0)
printk("Failed AT_CFUN_OFF_CMD\r\n");

err = at_cmd_write(AT_CGDCONT_WRITE_CMD, buf, sizeof(buf), NULL);
k_sleep(K_MSEC(20u));
printk("AT_CGDCONT_WRITE_CMD:%s\n", buf);
if (err < 0) {
printk("Failed to set APN using AT_CGDCONT_WRITE_CMD\r\n");
} else {
printk("APN set to 'sravan' successfully.\n");
}

k_sleep(K_MSEC(200u));
err = at_cmd_write(AT_CGDCONT_READ_CMD, buf, sizeof(buf), NULL);
printk("APN: %s", buf);
if(err < 0)
printk("Failed AT_CGDCONT_READ_CMD\r\n");
else
printk("Success AT_CGDCONT_READ_CMD\r\n");

RE: AT+CGDCONT? read command is not providing APN configuration details in response.

Michal — Thu, 17 Apr 2025 21:49:40 GMT

Hello Sravan,

We now have Easter holiday here in Norway.

I will get back to you in the middle of the next week.

Best regards,

Michal

RE: AT+CGDCONT? read command is not providing APN configuration details in response.

sravan.rikka — Thu, 17 Apr 2025 16:06:01 GMT

Hello Team,

Can you please respond.

Regards,

Sravan Rikka