EC200A-EU : no IP address get from LTE network

IoT Modules LTE Standard Module
1

Hello,

I’m working with the EC200A-EU module with an USB connection and Raspberry Pi OS (using mmcli)

I can unlock the SIM card and connect successfully to the LTE network :

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1724×718 114 KB

However the LTE network doesn’t seem to attribute an IPv4 address to the module :
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What i’m missing?

2

Uninstall modemmanager and initiate connection manually from a terminal, then check with at+cgpaddr.
Please do not use pictures.

3

I’ve uninstalled modemmanager.

AT+CGPADDR

+CGPADDR: 2,“0.0.0.0”,“0:0:0:0:0:0:0:0”
+CGPADDR: 8,“0.0.0.0”,“FDDE:0:127F:D459::4BD4:E505”

OK

4

Please show the output of at+cgdcont?
Did you notice that you need to “initiate connection manually”?

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at+cgdcont?

+CGDCONT: 1,“IP”,“Free”,“0.0.0.0”,0,0,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“free”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0,0,0
+CGDCONT: 8,“IPV4V6”,“IMS”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0,1,1

OK

I assume I’ve to try AT+CGDCONT= 1,“IP”,“free”,“0.0.0.0”,0,0 or something else?

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AT+CGDCONT=1,"IP","free"
AT+CGDCONT=2
AT+CEREG?
AT+QNETDEVCTL=1,1,1

Wait for the extra response from the last command.
Then check again with AT+CGPADDR?

7

Seems to have progress here!

at+cgdcont=1,“ip”,“free”
OK
at+cgdcont=2
OK
at+cereg?
+CEREG: 0,1

OK
at+qnetdevctl=1,1,1
OK

+QNETDEVSTATUS: 1
at+cgpaddr
+CGPADDR: 1,“10.110.53.200”
+CGPADDR: 8,“0.0.0.0”,“FDDE:0:37F:336F::51E9:968F”

OK

8

congratulations, now you have an address from the network

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Yes, now the Raspberry pi can connect via RNDIS to the network.
Thanks a lot for your help!

mmcli seemed to confuse me more than plain AT commands.