Hey,

The Netgear AC341U is a QMI device that comes with autoconnect enabled (and 
disabling it doesn't look possible, firmware may even crash and power cycle 
itself). I suspect that due to autoconnect being enabled, the packet service 
indications aren't sent as we expect them, in particular to detect network 
initiated disconnections.

If we don't get reliable packet service indications reporting disconnections, 
we may end up with ModemManager saying the modem is connected while the WWAN 
interface isn't really usable. To avoid this situation, we hook up two new 
places where we can detect the disconnection reported: either in the 
GetCurrentSettings step during the connection attempt (seen a couple of times 
where this is the case), or otherwise in the periodic Statistics loading logic 
(much more frequent).

Comments?

  [PATCH 1/2] bearer-qmi: detect early disconnections when getting current 
settings
  [PATCH 2/2] bearer-qmi: detect disconnections when loading stats
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