Hi @all,
We recently upgraded to the EG915Q-NA module(CAT1-based) for our project board. The sim we use is from Twilio (Super Sim). I’m in India and I’m observing the following behavior in the module. My case shows same value for all 3 reg commands( cgreg, cereg, creg) identically.(so cereg,creg also has same value on all the places where cgreg is mentioned)
Sometimes(very few times)
1. it can Register to the network(cgreg:0,5)(If I didn’t set any APN) but anyway, the connection is unstable
Most of the times
2. if I set the correct APN from Twilio - It is not getting connected and the registration status goes from CGREG:0,2 to CGREG:0,0 within seconds.
If I didn’t set the correct APN - It goes from CGREG:0,2 to CGREG:0,3 within seconds
Somebody, please explain this behavior and also the solution for the same. I can provide more info if you want.
Hi,
Thanks for the reply.
I’ve got the point that we should use AT+CEREG for cat1.
But yeah that also I did as mentioned above.(My case shows same value for all 3 reg commands( cgreg, cereg, creg) identically.(so cereg,creg also has same value on all the places where cgreg is mentioned))
Update:
Seems like the error is due to me directly copy pasting your command and the double quotes encoding is wrong.
So when I manually entered the command it returns response
And I am getting below response (for more than 5 mins and still the same)
Yes, the Antenna is intact and it can even connect to the network a few times, you can refer to the recording below for reference. My question is only a few times it connects but most of the time it isn’t.
But the same board, with same module and same supersim type is getting connected in the US everytime within seconds.
According to the analysis of the logs provided by you, the terminal registration network is rejected before APN is configured.After the APN is configured, the network registration is completed.
Therefore, you need to configure the APN immediately after the module is initialized, and then check the registered network status and IP address again
Even if I set the APN at start, it is not connecting most of the times(CEREG Goes from 2 to 0). The connection happens only a few times (in India). Refer the below log at-log-not-connecting.txt (42.0 KB)
Below is the log of QENG Servingcell and neighbourcell when it is got connected to the network if you need.
This is a command for manual operator selection(as JIO) right?
after setting this, the registration status goes to restricted(0,3) state immediately(even with the correct APN)
in that sim after the registration is successful(cereg:0,1)
I tried to run the pppd daemon like below pppd call quectel-pppd &
but I’m getting the error as “Could not determine local IP address” I’ve attached the full log of pppd cmd pppd script failure.txt (3.5 KB)
But I tried the same approach with Twilio Supersim(which supports JIO in roaming) which doesn’t even get register most of the times. Any suggestion on that would be appreciable!
