On 7/15/21 9:57 AM, Aleksander Morgado wrote:
After restart of ModemManager and then ifup wwan, reconnection is successful.
Strange. What modem is this?
Sorry to add to the posts, but further testing shows another case where
this recovery didn't help. I don't have a good log of this, but it
appears that the ppp connection doesn't fully complete and pppd
times out. In this case, we need to power cycle the modem - fortunately,
this is something that is easy to do for us (and previous testing
shows we need to power cycle the USB controller too), but of course
it leads to a lot of churn and connection taking time.
This would appear to be a bug with the modem. Obviously there isn't
much you can do about this, but I want to be clear about the different
cases we are dealing with.
Development wise, it seems like this is going to be a bunch of incremental
improvements to iron everything out.
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