Good day,
Looking for some guidance on how to troubleshoot this, I have a Debian 11
with LE910C4-NF which we use with two hardware sim slots, so the active
slot is always on slot 1 as far as mmcli is concerned. This vendor provides
a cli to switch slots. I can switch to slot 2 for verizon and make a
connection just fine with modemmanager. However on slot 1 with att, it just
timeout. Even if I do verbose there isn't much information to go on. The
strength shows 75%.
I have an enterprise booster antenna, so I should be able to connect. On
Debian 9 with a Sierra modem with qmi I can connect with att with
sudo mmcli -m 0 --simple-connect='apn=our.custom.apn,ip-type=ipv4v6'
moxa@hostname:~$ mmcli -m 10
----------------------------------
General | path: /org/freedesktop/ModemManager1/Modem/10
| device id:
a411abc5574ab456d4cd12c8decfcb87819a4b37
----------------------------------
Hardware | manufacturer: Telit
| model: LE910C4-NF
| firmware revision: 25.20.668 1 [Mar 20 2020 12:00:00]
| carrier config: default
| h/w revision: 1.10
| supported: gsm-umts, lte
| current: gsm-umts, lte
| equipment id: 350344982749853
----------------------------------
System | device:
/sys/devices/platform/soc/30800000.bus/30b10000.usb/ci_hdrc.0/usb1/1-1
| drivers: qmi_wwan, option
| plugin: Moxa-Telit-LE910CX
| primary port: cdc-wdm0
| ports: cdc-wdm0 (qmi), ttyUSB4 (ignored),
ttyUSB5 (gps),
| ttyUSB6 (at), ttyUSB7 (at), ttyUSB8
(ignored), wwan0 (net)
----------------------------------
Status | lock: sim-pin2
| unlock retries: sim-pin (3), sim-puk (10), sim-pin2
(3), sim-puk2 (10)
| state: enabled
| power state: on
| access tech: lte
| signal quality: 100% (cached)
----------------------------------
Modes | supported: allowed: 3g; preferred: none
| allowed: 4g; preferred: none
| allowed: 3g, 4g; preferred: 4g
| allowed: 3g, 4g; preferred: 3g
| current: allowed: 2g, 3g, 4g; preferred: 4g
----------------------------------
Bands | supported: utran-4, utran-5, utran-2, eutran-2,
eutran-4, eutran-5,
| eutran-12, eutran-13, eutran-14,
eutran-66, eutran-71
| current: utran-4, utran-5, utran-2, eutran-2,
eutran-4, eutran-5,
| eutran-12, eutran-13, eutran-14,
eutran-66, eutran-71
----------------------------------
IP | supported: ipv4, ipv6, ipv4v6
----------------------------------
3GPP | imei: 350344982749853
| enabled locks: fixed-dialing
| operator id: 310260
| registration: idle
----------------------------------
3GPP EPS | ue mode of operation: csps-2
| initial bearer apn: nxtgenphone
| initial bearer ip type: ipv4v6
----------------------------------
SIM | primary sim path: /org/freedesktop/ModemManager1/SIM/8
| sim slot paths: slot 1:
/org/freedesktop/ModemManager1/SIM/8 (active)
| slot 2: none
moxa@moxa-tbbbb1182802:~$ sudo mmcli -m 10 --3gpp-scan --timeout=300
[sudo] password for moxa:
---------------------
3GPP scan | networks: 311490 - 311 490 (lte, forbidden)
| 313100 - 313 100 (lte, available)
| 310260 - AT&T (lte, current)
| 311480 - Verizon (lte, forbidden)
| 310410 - AT&T (lte, available)
Thank you,
Fernando B.
