MC7455 not working

Bjørn Mork bjorn at
Fri Jun 17 17:45:29 UTC 2016

Aleksander Morgado <aleksander at> writes:

> On Fri, Jun 17, 2016 at 5:56 PM, Thomas Lang <thomas.lang at> wrote:
>> ModemManager[835]: <info>  QMI IPv4 Settings:
>> ModemManager[835]: <info>      Address:
>> ModemManager[835]: <info>      Gateway:
>> ModemManager[835]: <info>      DNS #1:
>> ModemManager[835]: <info>      DNS #2:
>> ModemManager[835]: <info>         MTU: 1500
>> ModemManager[835]: [/dev/cdc-wdm1] Allocating new client ID...
>> ModemManager[835]: [/dev/cdc-wdm1] Registered 'wds' (version 1.67) client with ID '36'
>> ModemManager[835]: <info>  error: couldn't start network: QMI protocol error (14): 'CallFailed'
>> ModemManager[835]: <info>  call end reason (1): 'generic-unspecified'
>> ModemManager[835]: <info>  verbose call end reason (2,210): [internal] pdn-ipv6-call-disallowed
>> ModemManager[835]: <info>  Modem /org/freedesktop/ModemManager1/Modem/0: state changed (connecting -> connected)
> Are you requesting both IPv4 and IPv6 explictly in the NM config?
> Looks like IPv6 is failing here.

Yes, looks like it is denied by the network.  FWIW, I'm currently in
exact the same situation - as embarrassing as that might be.  But I
don't see any failures due to this, only the expected
pdn-ipv6-call-disallowed 'CallFailed' message.  The IPv4 session still
works fine for me.


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