NO TCP Connection / at command execution failed CIPSTART

[kamane]

After confirming connection with APN , by using AT+CGPADDR=1 i receive my IP adress .
and also ping a server works with this command AT+PING="10.234.79.235",120,200,1

Then this command alway failed AT+CIPSTART="TCP","10.234.79.235","80"

how can i fix this issue ?

this also is not working MQTT :
AT+MQTTCONN="mqtt.thingspeak.com",1883,"DHT11",120,1,"ESP12SA9G","BQ64USNQPF4GEPSJ"

here is my firmware version .

A9/A9G
V02.02.20190915R
Ai_Thinker_Co._Ltd.
READY
+CTZV:20/06/16,11:32:31,+02

[dapadilla5986]

@kamane you solved the problem?
I have a similar issue

[sadamyne]

Hi,
How do you make the connection?
Im using:
String msg= sendData("AT+CGATT=1",1000,DEBUG); //GPRS ATTACH OR DETACH
Serial.println(msg);
msg= sendData("AT+CGDCONT=1,"IP","TM"",1000,DEBUG); // subs CMNET por pepper ou TM
Serial.println(msg);
delay(5000);
msg= sendData("AT+CGACT=1,1",1000,DEBUG); //command is used to activate ot deactivate the PDP context
Serial.println(msg);
delay(5000);
msg= sendData("AT+PING="8.8.8.8",120,200,1",1000,DEBUG);
but im not getting any response...

Thanks in advance

[kamane]

@dapadilla5986 yes make sure your power supply is correct .

[kamane]

@sadamyne if your board have an ip assigned then try this AT+HTTPGET="http://xx.xx.xx.xx"

[sadamyne]

Thanks it helped me solve it, i had two problems, one was the baud rate of the A9G serial wasn't set to 9600, the other was that the delay between turning on the A9G and trying to connect to the ISP was too small. I manage to get a message to the mqtt broker im using (dioty.com).

I searched and i couldn't find a manual or list of AT-commands for the A9G, do you have one of those?
Is there a command to get the gsm localtization (to use when satelites are not visible to the gps?)
Thanks

[IOT-MCU]

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