BG96 - QIURC : pdpdeact,1 problem

IoT Modules LPWA Module
1

Hi,

I am working with the BG96 module. I was trying to connect to internet via TCP/IP. I used different AT-Commands to make it work.
The application is the following :
Most of the time, the device is sending data via MQTT using CAT M1.
Occasionnaly, I want to be able to connect to the device via VPN server so I need to connect to interet via the BG96 module. I successfully made it with PPP connection but it is not the optimal solution.
I want to connect to internet via TCP/IP.

After many tries the output of the BG96 is weird :
- It does not send the AT-Command in the screen anymore.
- I cannot connect via MQTT anymore. I always get the error +QIURC: “pdpdeact”,1
I tried the command AT+QIDEACT and waited for 40 seconds. Also tried AT+QIACT and waited 150s and then AT+QIACT? like in the documentation.

I tried the following things in order to resolve the problem but none of them worked :
- I reinstalled the firmware BG96MAR02A07M1G_01.019.01.019 via Qflash
- I reinitialized factory setting via AT&F command
- I used CFUN command

I don’t know what to do else to resolve the problem.
You can find attached the photo of the At-commands terminal.

Thank you in advance for your help.

BG96 Screenshot
BG96 Screenshot1920×1080 110 KB

2

Hi，

Q: -It does not send the AT-Command in the screen anymore.
A: It seems in dial, have you exit from PPP dial?

Q*- I cannot connect via MQTT anymore. I always get the error +QIURC: “pdpdeact”,1*
A: As screenshot you sent, seems network is unregistered, could you checked this? and how about MQTT server? its working fine, if server reset MQTT requestion, it will report pdpdeact URC.

3

Hi Linkin-Q,

Thank you for your answer.

The solution I found is to reset the module with AT+QPRTPARA=3.

Now I am having another problem :

  • When I open MQTT connection with AT+QMTOPEN I am getting +QMTOPEN : 0,3 (Failed to activate PDP)

When I use AT+QIACT followed by AT+QIACT?, I can open connection with AT+QMOPEN and things work fine. When I reboot the BG96 I have the same problem so I need to Activate pdp via AT+QIACT again.

The behaviour of the BG96 is the same with using AT+QIDEACT;

Is there a solution to open PDP permenantely and to have to using AT+QIACT or QI+DEACT after every reboot.

Thanks in advance for your help.

BG96 - pdp open
BG96 - pdp open767×580 85.1 KB

4

Hi Saiff,

Currently cannot, we need active PDP manually by AT+QIACT=x.