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  • Case ID: 287160
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E: Cloud MQTT input error: -128 // Socket is not connected

user113581

Hello there,

I'm trying to connect to the AWS cloud. However, when I attempt to connect, it gives out error 128. Which, accoring to this table, means there's no connected socket.

The complete error message:

AWS_IOT_EVT_CONNECTING
+CSCON: 1
RRC mode: Connected
AWS_IOT_EVT_DISCONNECTED
E: Cloud MQTT input error: -128
+CSCON: 0
RRC mode: Idle
Next connection retry in 30 seconds

I've also taken a look in this thread. Here, the issue was that OP didn't use CA1 when connecting. I do.

There's also some success. According to the AWS monitor, there's a "Get thing shadow" success rate of about 25%(15-6). Could this indicate a signal issue? I know my reception isn't great. Or should I look somewhere in my code or AWS settings?

  • 0 in reply to user77062 

    *** Booting Zephyr OS build v2.7.99-ncs1  ***
The AT host sample started
AT+CFUN=1
OK
AT+CFUN?
+CFUN: 1
OK
AT+CGSN=1
+CGSN: "351358817002543"
OK
AT+CGMI
Nordic Semiconductor ASA
OK
AT+CGMM
nRF9160-SICA
OK
AT+CGMR
mfw_nrf9160_1.3.1
OK
AT+CEMODE?
+CEMODE: 2
OK
AT%XCBAND=?
%XCBAND: (1,2,3,4,5,8,12,13,18,19,20,25,26,28,66)
OK
AT+CMEE?
+CMEE: 0
OK
AT+CMEE=1
OK
AT+CNEC?
+CNEC: 0
OK
AT+CNEC=24
OK
AT+CGEREP?
+CGEREP: 0,0
OK
AT+CGDCONT?
OK
AT+CGACT?
OK
AT+CGEREP=1
OK
AT+CIND=1,1,1
OK
AT+CEREG=5
OK
AT+CEREG?
+CEREG: 5,4
OK
AT%CESQ=1
OK
AT+CESQ
+CESQ: 99,99,255,255,255,255
OK
AT%XSIM=1
OK
AT%XSIM?
%XSIM: 1
OK
AT+CPIN?
+CPIN: READY
OK
AT+CPINR="SIM PIN"
+CPINR: "SIM PIN",3
OK
AT+CIMI
234507098655705
OK
%CESQ: 22,1,15,2
+CEREG: 2,"86C6","00945D0D",7
+CGEV: ME PDN ACT 0,0
+CNEC_ESM: 50,0
+CEREG: 5,"86C6","00945D0D",7,,,"11100000","11100000"
+CIND: "service",1
+CIND: "roam",1AT+CGDCONT?
+CGDCONT: 0,"IP","hologram","10.171.23.168",0,0
OK
AT+COPS=3,2
OK
AT+CGACT?
+CGACT: 0,1
OK
AT+COPS?
+COPS: 0,2,"20408",7
OK
AT%XCBAND
%XCBAND: 20
OK
AT+CGDCONT?
+CGDCONT: 0,"IP","hologram","10.171.23.168",0,0
OK
AT+CGACT?
+CGACT: 0,1
OK
%CESQ: 21,1,10,1
%CESQ: 22,1,15,2
%CESQ: 22,1,10,1
%CESQ: 21,1,15,2

    Again, apologies for the incomplete information.

  • +1

    Ok, so I figured out what the problem was. The ARN was set to the thing. Which, it apparently does not accept. When opening it to everything with a *, I got connected.

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