[OpenWrt-Devel] Unable to connect with uqmi ("No effect")

Bjørn Mork bjorn at mork.no
Mon May 29 07:20:54 EDT 2017

Carlo Lobrano <c.lobrano at gmail.com> writes:

> Hello,
> Hope this is the right place to ask for help and my apologies if it is not.
> I'm testing uqmi with a Telit LE910 LTE modem on Ubuntu 16.10, but I'm
> facing this weird issue.
> Uqmi considers the modem connected from the very beginning, even if I
> haven't run --start-network yet and even if I use --set-autoconnect
> disabled first, and when I try to connect with a different APN it replies
> with "no effect"
>     $ sudo uqmi -d /dev/cdc-wdm1 --get-data-status
>     "connected"
>     $ sudo uqmi -d /dev/cdc-wdm1 --set-autoconnect disabled
>     $ sudo uqmi -d /dev/cdc-wdm1 --get-data-status
>     "connected"
>     $ sudo uqmi -d /dev/cdc-wdm1 --start-network web.omnitel.it
>  --autoconnect
>     "No effect"

AFAICS, that is the expected result.  The modem is connected and you do
not disconnect, so "start-network" has no effect.

If you do not want "autoconnect" then you should not include it with the
"start-network" request.

If "--set-autoconnect disabled" does not work as expected, then please
try "--stop-network --autoconnect".  This should both stop the current
session and disable autoconnect for future sessions.  Until you enable
it again with "--start-network --autoconnect".  Just don't do that if
you don't want autoconnect...

> I think that reason is the default bearer established at the attach (since
> it's LTE), but I'm not sure how to overcome this and any hints would be
> very appreciated.

I haven't seen any such issues with the Qualcomm based modems. They seem
to deal pretty well with the difference between their data bearers and
the initial default bearer.

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