@Alfonso

So I agree that the modem disconnect seen when WiFi is toggled off is
rare, that said, per my previous comment #38, it looks NM definitely
gets in a state where it doesn't recover.  I didn't see where you
specified how long you waited after the disconnect; it's possible that
this is a permutation of bug #1418077, but as I didn't see a state
message showing the modem transition to "searching", I don't think this
is the case.

This may just be a timing issue.  In this case, the route failures cause
the connection failure, which is different than a connection failing due
to the context being de-activated.   Maybe it's this case which leaves
the modem in 'connected' state?

I will try my force-route failure experiment on krillin/RTM and see if
it triggers the same scenario.

Also, this may be related to the FM failures seen in RTM on arale and
mako; see bug #1445080 for details.

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https://bugs.launchpad.net/bugs/1435328

Title:
  Leaving Wifi does not connect to mobile carrier data (GSM)

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