SIM7020E MQTT connection error

Gayan8090

Hello everybody,

I am trying to connect to public MQTT by using AT+CMQNEW command, but it always return ERROR. Connection to network looks fine to me.

Here is from the output logs:

AT+CGDCONT?
+CGDCONT: 1,"IP","scs.telekom.tma.iot","11.0.0.154",0,0,0,,,,0,,0,,0

OK

AT+CDNSCFG?
PrimaryDns: 114.114.114.114
SecondaryDns: 119.29.29.29

OK

AT+CMQNEW="test.mosquitto.org",1883,12000,1024
ERROR

AT+CMQNEW="test.mosquitto.org","1883",12000,1024
ERROR

I also try to ping some DNS address 8.8.8.8, but got some weird response.

AT+CIPPING="8.8.8.8"
OK
+CIPPING: 1,8.8.8.8,100,0
+CIPPING: 2,8.8.8.8,100,0
+CIPPING: 3,8.8.8.8,100,0
+CIPPING: 4,8.8.8.8,100,0

I am not sure if there is something wrong. Can you please give me some suggestions?

Thank you very much.

MarcoPeli

hi @Gayan8090 , to connect to servers outside iotcreators ones, please use apn “internet.gma.iot”.
APN “scs.telekom.tma.iot” is only for accessing iotcreators sevices.

Thank you very much,
Best Regards
Marco Peli