network scan not returning results?

[Paul Gildea]

When running a scan on different systems I've noticed that some of them do
not return the network scan results. Do you know why this may be the case?
Example:

qmicli -p -d /dev/cdc-wdm2 --nas-network-scan
[16 May 2019, 09:35:03] -Warning ** [/dev/cdc-wdm2] requested auto mode but
no MBIM QMUX support available
[/dev/cdc-wdm2] Successfully scanned networks


It will just mention that the scan was a success but no networks are
displayed, there are plenty of them around (and the modem is connected to
one). I am using qmicli 1.18.2 and seeing this with MC7455's. Also noticed
with MC7430. Yet it works fine consistently on other systems I am running
the same command on in roughly the same location, connected to the same
network:

qmicli -p -d /dev/cdc-wdm0 --nas-network-scan
[16 May 2019, 10:50:39] -Warning ** [/dev/cdc-wdm0] requested auto mode but
no MBIM QMUX support available
[/dev/cdc-wdm0] Successfully scanned networks
Network [0]:
        MCC: '272'
        MNC: '1'
        Status: 'available, home, not-forbidden, preferred'
        Description: 'vodafone IE'
Network [1]:
        MCC: '272'
        MNC: '1'
        Status: 'current-serving, home, not-forbidden, preferred'
        Description: 'vodafone IE'
Network [2]:
        MCC: '272'
        MNC: '3'
        Status: 'available, roaming, forbidden, not-preferred'
        Description: 'IRL - METEOR'
Network [3]:
        MCC: '272'
        MNC: '2'
        Status: 'available, roaming, not-forbidden, not-preferred'
        Description: '3'
Network [4]:
        MCC: '272'
        MNC: '3'
        Status: 'available, roaming, forbidden, not-preferred'
        Description: 'IRL - METEOR'
Network [5]:
        MCC: '272'
        MNC: '5'
        Status: 'available, roaming, forbidden, not-preferred'
        Description: '3'
Network [0]:
        MCC: '272'
        MNC: '1'
        RAT: 'umts'
Network [1]:
        MCC: '272'
        MNC: '1'
        RAT: 'lte'
Network [2]:
        MCC: '272'
        MNC: '3'
        RAT: 'lte'
Network [3]:
        MCC: '272'
        MNC: '2'
        RAT: 'umts'
Network [4]:
        MCC: '272'
        MNC: '3'
        RAT: 'umts'
Network [5]:
        MCC: '272'
        MNC: '5'
        RAT: 'lte'
Network [0]:
        MCC: '272'
        MNC: '1'
        MCC with PCS digit: 'no'
Network [1]:
        MCC: '272'
        MNC: '1'
        MCC with PCS digit: 'no'
Network [2]:
        MCC: '272'
        MNC: '3'
        MCC with PCS digit: 'no'
Network [3]:
        MCC: '272'
        MNC: '2'
        MCC with PCS digit: 'no'
Network [4]:
        MCC: '272'
        MNC: '3'
        MCC with PCS digit: 'no'
Network [5]:
        MCC: '272'
        MNC: '5'
        MCC with PCS digit: 'no'


Perhaps modem firmware related? RAT settings? I am looking into that now.

Regards,

--
Paul
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