Hey Aleksander, I found this in our logs. As you can see we get a URC right after a solicited request that's polled. This causes a connection reset.
2018-04-25T07:35:19.155738 ModemManager[1797]: <debug> (ttyACM1): --> 'AT^SWWAN?<CR>' 2018-04-25T07:35:20.317705 ModemManager[1797]: <debug> (ttyACM0): <-- '<CR><LF>+CIEV: 1,3<CR><LF>' 2018-04-25T07:35:20.398151 ModemManager[1797]: <debug> (ttyACM1): <-- '<CR><LF>+CIND: 0,2,1,1,1,0,1,0<CR><LF><CR><LF>OK<CR><LF><CR><LF>+CIEV: 1,3<CR><LF><CR><LF>+CIEV: psinfo,6<CR><LF><CR><LF>+CREG: 5,"1611","0217BCC",2<CR><LF><CR><LF>+CGREG: 5,"1611","0217BCC",2<CR><LF><CR><LF>+CIEV: psinfo,10<CR><LF>' 2018-04-25T07:35:20.413390 ModemManager[1797]: <debug> Modem /org/freedesktop/ModemManager1/Modem/0: access technology changed (hsdpa, hsupa -> umts) 2018-04-25T07:35:20.427281 ModemManager[1797]: <debug> Modem /org/freedesktop/ModemManager1/Modem/0: access technology changed (umts -> hsdpa, hsupa) 2018-04-25T07:35:20.438959 ModemManager[1797]: <warn> checking if connected failed: Couldn't parse ^SWWAN response: '+CIND: 0,2,1,1,1,0,1,0' I'm looking to push a patch for this but wanted to see if anyone had thoughts on approach before I start? Cheers
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