Hey!
>> I would assume that sending SSSP message with the Network Selection >> Preference TLV (and only that TLV) is what we should be doing, yes. >> That's what I understood from the Initiate Network Register >> deprecation notice, at least. >> >> > Hi Aleksander, > > We have now tested this change on a few devices and initial results are > promising. Thank you for your help. > > Saw the MR already, I'll work on integrating it soon. > I was hoping you could help us with another issue regarding the Quectel > BG96 modem. Around half of our devices experience intermittent modem > crashes where the four USB devices presented by the modem disappear from > the host. The modem usually re-enumerates after a few seconds with no > issues. Some devices are more prone to this failure, which can cause > significant downtime on the cellular connection. > > We have done extensive testing of the rails lines in the system and are > fairly confident this is not an issue with power supplies. It also happens > regardless of the modem's connection state -- this has happened on > unconnected devices (in RF boxes) as well as devices connected on 2G, and > LTE. We have a running thread with a Quectel FAE but nothing conclusive has > been determined. > > This is probably a long shot, but have you seen similar behavior before? > If not, do you have a gut feeling as to what might cause such crashes? > > That is usually an indication of a modem firmware crash, not much we can do I'm afraid. You need to sync with the Quectel support team to debug this further. -- Aleksander https://aleksander.es
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