ModemManager using QMI doesnt always work in the first attemp.

[Aleksander Morgado]

On Thu, Nov 12, 2015 at 1:15 PM, José <Joseddg92 at gmail.com> wrote:
>
> I am working with two different QMI modems (Telit LE910 and Sierra MC7710 in QMI mode) and experimenting one issue with both of them.
>
> After boot I try to establish the connection:
>
> ModemManager &
> (wait for the modem to be detected)
> mmcli -m 0 --simple-connect="apn=.."
>
> This somtimes works, but most of the time fails. However, when it fails, issuing
> mmcli -m 0 --simple-connect="apn=.."
> always works.
>
> I don't think it is related to the enviroment, because other modems (or even the same Sierra MC7710 using MBIM or Direct IP) work fine.
>
> The common error is this (complete logs at the end)
>
> ModemManager[684]: [/dev/cdc-wdm0] No transaction matched in received message
>
>
> What could be causing that?


Can you gather *debug* logs? Thanks!


-- 
Aleksander
https://aleksander.es