New sim card does not register for LTE

Installing and Using OpenWrt
1

Hello,
I'm currently using a APU3 board with a Quectel-EP06 and the latest version of OpenWrt for my board.
Today I've switched to a new sim card and I cannot get any LTE connection anymore. The sim card is from the same company (Bouygues Telecom), just another contract.
The card works fine in two different mobiles phones.

From the sytem log, I'm getting the following (4G is the name of my connection):

ar 14 15:07:06 2022 daemon.notice netifd: 4G (2669): Starting network 4G
Mon Mar 14 15:07:06 2022 daemon.notice netifd: 4G (2669): Unable to connect IPv4
Mon Mar 14 15:07:06 2022 daemon.notice netifd: 4G (2762): Stopping network 4G
Mon Mar 14 15:07:06 2022 daemon.notice netifd: 4G (2762): Command failed: Permission denied
Mon Mar 14 15:07:06 2022 daemon.notice netifd: Interface '4G' is now down
Mon Mar 14 15:07:06 2022 daemon.notice netifd: Interface '4G' is setting up now
Mon Mar 14 15:07:06 2022 daemon.notice netifd: 4G (2770): Waiting for SIM initialization
Mon Mar 14 15:07:07 2022 daemon.notice netifd: 4G (2770): Device does not support 802.3 mode. Informing driver of raw-ip only for wwan0 ..
Mon Mar 14 15:07:08 2022 daemon.notice netifd: 4G (2770): Waiting for network registration
Mon Mar 14 15:07:09 2022 daemon.notice netifd: 4G (2770): Starting network 4G
Mon Mar 14 15:07:09 2022 daemon.notice netifd: 4G (2770): Unable to connect IPv4
Mon Mar 14 15:07:09 2022 daemon.notice netifd: 4G (2865): Stopping network 4G
Mon Mar 14 15:07:09 2022 daemon.notice netifd: 4G (2865): Command failed: Permission denied
Mon Mar 14 15:07:09 2022 daemon.notice netifd: Interface '4G' is now down
Mon Mar 14 15:07:09 2022 daemon.notice netifd: Interface '4G' is setting up now
Mon Mar 14 15:07:09 2022 daemon.notice netifd: 4G (2873): Waiting for SIM initialization
Mon Mar 14 15:07:10 2022 daemon.notice netifd: 4G (2873): Device does not support 802.3 mode. Informing driver of raw-ip only for wwan0 ..
Mon Mar 14 15:07:11 2022 daemon.notice netifd: 4G (2873): Waiting for network registration

Has anyone any idea what can cause this?

2

Hi.
APN name config over 4G interface?
I saw that with Vodafone. 2 different contracts use different APN: home ( static use ) and mobile use.
Your phones were success to catch auto apn, as your openwrt config was not.

3

Hi,
Thanks for the proposal!
I've tried the two APNs which are not working with the new sim card:
ebouygtel.com (functional with old sim card)
mmsbouygtel.com (not functional with old or new sim card, used automatically on both phones)

I've no idea where to look next...

4

HI.

Some uqmi command could help.
https://openwrt.org/docs/guide-user/network/wan/wwan/ltedongle

Try theses:

 --get-iccid:                      Get the ICCID
  --get-imsi:                       Get International Mobile Subscriber ID
  --get-imei:                       Get International Mobile Equipment ID
  --get-msisdn:                     Get the MSISDN (telephone number)
5

Hi

You could check what default APN is configured in you modem. If it´s wrong it can cause problems with the registration to the network

You can use AT-command: AT+CGDCONT

or qmicli:

qmicli -d /dev/cdc-wdm0 --wds-get-profile-list=3gpp
qmicli -d /dev/cdc-wdm0 --wds-get-default-profile-num=3gpp