Reloading stats failed: QMI operation failed: Transaction timed out

[Aleksander Morgado]

Hey,

>
> ModemManager - 1.10.8 ( Ubuntu 16.06.4)  running on a Sierra Wireless EM74xx modem
>
> Couldn't load extended signal information: No way to load extended signal information
> ModemManager[1222]: <warn>  Couldn't load extended signal information: Couldn't peek QMI port
> ModemManager[1222]: <warn>  Reloading stats failed: QMI operation failed: Transaction timed out
>
> After this error, the ModemManager doesn't recover until a modem reset is performed. The modem is in a kind of locked state.
>
> The IP is still existing and restarting the ModemManager or the system is not helping out.
>
> What does the above error mean and is Modem Reset the only option to bring the modem out of this state ?
>

The above error means that the query to reload statistics didn't
finish properly because the response from the modem was not received.
That, by itself, may not be a problem, but what you're experiencing
surely seems like a problem in the QMI communication overall. Without
a ModemManager debug log it's hard to say what the actual problem is,
though.

My suggestion is to upgrade ModemManager to at least 1.12.x and retry
running the daemon with --debug. You can use my 16.04 PPA here, which
doesn't have the latest MM version, but at least is newer than the one
you're using: https://launchpad.net/~aleksander-m/+archive/ubuntu/modemmanager-xenial


-- 
Aleksander
https://aleksander.es