Issues Connecting to Telit LE910 through ModemManager, but not qmicli

[Ben Eck]

Howdy!
 I am working on creating a mobile embedded linux device using an LE910
module. I have been successful in using it to connect to the internet using
qmicli tools, however, I'd like to have more sophisticated network
management using ModemManager and NetworkManager. Unfortunately, I'm having
some trouble connecting with ModemManager. I issue the command:

mmcli -m 0 --simple-connect="apn=VZWINTERNET"

but am getting the error " Modem not yet registered in a 3GPP network...
will recheck" and eventually "3GPP registration check timed out". Any idea
what could be causing this? It seems very much like a bug in either
ModemManager or the modem firmware, if I'm able to connect using just
qmicli. Registering the network manually using "mmcli -m 0
--3gpp-register-in-operator=311480" also doesn't work. "qmicli -d
/dev/cdc-wdm0 --nas-get-serving-system" indicates that the modem is
registered.

In case its helpful, I'm running ModemManager 1.6.10 and here's the output
of mmcli -m 0:

Thanks!

____________________________________

root at CT650:~# mmcli -m 0

/org/freedesktop/ModemManager1/Modem/0 (device id
'81117f9e085df0ba08eb97084df34a54bad97b8a')
-------------------------
Hardware | manufacturer: 'QUALCOMM INCORPORATED'
| model: 'LE910-SVG'
| revision: '17.01.573 1 [Oct 16 2014 07:00:00]'
| supported: 'lte'
| current: 'lte'
| equipment id: '351999096804404'
-------------------------
System | device: '/sys/devices/platform/ahb/500000.ehci/usb1/1-2'
| drivers: 'option1, qmi_wwan'
| plugin: 'Generic'
| primary port: 'cdc-wdm0'
| ports: 'ttyUSB0 (qcdm), ttyUSB2 (at), cdc-wdm0 (qmi), wwan0 (net),
ttyUSB3 (at)'
-------------------------
Numbers | own : '3035326256'
-------------------------
Status | lock: 'sim-pin2'
| unlock retries: 'sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10)'
| state: 'enabled'
| power state: 'on'
| access tech: 'unknown'
| signal quality: '0' (cached)
-------------------------
Modes | supported: 'allowed: 4g; preferred: none'
| current: 'allowed: 4g; preferred: none'
-------------------------
Bands | supported: 'eutran-iv, eutran-xiii'
| current: 'eutran-iv, eutran-xiii'
-------------------------
IP | supported: 'ipv4, ipv6, ipv4v6'
-------------------------
3GPP | imei: '351999096804404'
| enabled locks: 'none'
| operator id: 'unknown'
| operator name: 'unknown'
| subscription: 'unknown'
| registration: 'unknown'
-------------------------
SIM | path: '/org/freedesktop/ModemManager1/SIM/0'

-------------------------
Bearers | paths: 'none'

Ben Eck

Embedded Systems Engineer

OneRain

The Rainfall Company

1531 Skyway Drive | Unit D | Longmont | Colorado 80504

Toll Free  1-800-758-RAIN (7246)

Phone +1-303-774-2033

Fax +1-303-774-2037

E-mail ben.eck at onerain.com

www.onerain.com <https://onerain.com/>

Follow us on LinkedIn <https://www.linkedin.com/company/onerain> and
Facebook <https://www.facebook.com/onerain.inc/>

An AE Monitoring member company
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/modemmanager-devel/attachments/20190228/ec08a7c8/attachment.html>