Toby-L201 connect failure Ubuntu 18.04 Modem Manager 1.10.6 Linux Kernel Version 4.20.7

[Cale Collins]

Hello,

I have a Toby L201 modem on an ARM board running Ubuntu 18.04, Modem
manager version 1.10.6.

My modem seems to be working normally though the "--simple-connect"
command produces an error.  Can someone help me understand to me how
to get --simple-connect working?

Here's some output for more clarity on what's occurring.  Thanks in advance.

root at bionic-armhf:~# mmcli -m 0
  --------------------------------
  General  |            dbus path: /org/freedesktop/ModemManager1/Modem/0
           |            device id: abe45ff8bcc876b5ce19e4ddeb526f64d4132852
  --------------------------------
  Hardware |         manufacturer: u-blox
           |                model: TOBY-L201
           |    firmware revision: 09.93
           |            supported: gsm-umts, lte
           |              current: gsm-umts, lte
           |         equipment id: 358502060981282
  --------------------------------
  System   |               device:
/sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.4
           |              drivers: cdc_acm, rndis_host
           |               plugin: u-blox
           |         primary port: ttyACM0
           |                ports: ttyACM0 (at), usb0 (net)
  --------------------------------
  Status   |       unlock retries: sim-pin (3), sim-pin2 (3), sim-puk
(10), sim-puk2 (10)
           |                state: disabled
           |          power state: on
           |       signal quality: 0% (cached)
  --------------------------------
  Modes    |            supported: allowed: 3g; preferred: none
           |                       allowed: 4g; preferred: none
           |                       allowed: 3g, 4g; preferred: none
           |                       allowed: 3g, 4g; preferred: 3g
           |                       allowed: 3g, 4g; preferred: 4g
           |              current: allowed: 2g, 3g, 4g; preferred: 4g
  --------------------------------
  Bands    |            supported: utran-1, utran-3, utran-4, utran-6,
utran-5, utran-8,
           |                       utran-2, utran-7, eutran-1,
eutran-2, eutran-3, eutran-4, eutran-5,
           |                       eutran-7, eutran-8, eutran-11,
eutran-13, eutran-17, eutran-20,
           |                       utran-11
  --------------------------------
  IP       |            supported: ipv4, ipv6, ipv4v6
  --------------------------------
  3GPP     |                 imei: 358502060981282
  --------------------------------
  3GPP EPS | ue mode of operation: csps-2
  --------------------------------
  SIM      |            dbus path: /org/freedesktop/ModemManager1/SIM/0
root at bionic-armhf:~#
root at bionic-armhf:~# mmcli -m 0 --enable
successfully enabled the modem
root at bionic-armhf:~# mmcli -m 0 --simple-connect="apn=m2m.com.attz"
error: couldn't connect the modem:
'GDBus.Error:org.freedesktop.ModemManager1.Error.MobileEquipment.Unknown:
Unknown error'
root at bionic-armhf:~# mmcli -m 0
  --------------------------------
  General  |            dbus path: /org/freedesktop/ModemManager1/Modem/0
           |            device id: abe45ff8bcc876b5ce19e4ddeb526f64d4132852
  --------------------------------
  Hardware |         manufacturer: u-blox
           |                model: TOBY-L201
           |    firmware revision: 09.93
           |            supported: gsm-umts, lte
           |              current: gsm-umts, lte
           |         equipment id: 358502060981282
  --------------------------------
  System   |               device:
/sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.4
           |              drivers: cdc_acm, rndis_host
           |               plugin: u-blox
           |         primary port: ttyACM0
           |                ports: ttyACM0 (at), usb0 (net)
  --------------------------------
  Status   |       unlock retries: sim-pin (3), sim-pin2 (3), sim-puk
(10), sim-puk2 (10)
           |                state: registered
           |          power state: on
           |          access tech: lte
           |       signal quality: 80% (recent)
  --------------------------------
  Modes    |            supported: allowed: 3g; preferred: none
           |                       allowed: 4g; preferred: none
           |                       allowed: 3g, 4g; preferred: none
           |                       allowed: 3g, 4g; preferred: 3g
           |                       allowed: 3g, 4g; preferred: 4g
           |              current: allowed: 2g, 3g, 4g; preferred: 4g
  --------------------------------
  Bands    |            supported: utran-1, utran-3, utran-4, utran-6,
utran-5, utran-8,
           |                       utran-2, utran-7, eutran-1,
eutran-2, eutran-3, eutran-4, eutran-5,
           |                       eutran-7, eutran-8, eutran-11,
eutran-13, eutran-17, eutran-20,
           |                       utran-11
  --------------------------------
  IP       |            supported: ipv4, ipv6, ipv4v6
  --------------------------------
  3GPP     |                 imei: 358502060981282
           |          operator id: 310410
           |        operator name: AT&T
           |         registration: home
  --------------------------------
  3GPP EPS | ue mode of operation: csps-2
  --------------------------------
  SIM      |            dbus path: /org/freedesktop/ModemManager1/SIM/0
  --------------------------------
  Bearer   |            dbus path: /org/freedesktop/ModemManager1/Bearer/0

Best regards,

Cale Collins
Field Applications Engineer
Gateworks Corporation
(805)781-2000 x37
3026 S. Higuera, San Luis Obispo, CA 93401
www.gateworks.com