Hi, > -----Original Message----- > From: Aleksander Morgado [mailto:aleksan...@aleksander.es] > Sent: Samstag, 7. November 2020 17:47 > To: Girish Mahadevan <girish_mahade...@trimble.com> > Cc: ModemManager (development) <modemmanager- > de...@lists.freedesktop.org>; CIFELLI Giacinto > <giacinto.cife...@thalesgroup.com> > Subject: Re: MM 1.14.2: Question about bearer disconnect > > Hey, > > > We're running 1.14.2 on a Cinterion (PLS62W) module. > > > > The modem is connected for a while and suddenly loses registration > > causing MM to start a forced disconnect of the bearer, but the attempt > > at disconnection fails. > > > > Oct 29 22:11:24.709516 ModemManager[530]: <info> [1604009484.709151] > > [modem0] state changed (connected -> disconnecting) Oct 29 > > 22:11:24.768445 ModemManager[530]: <debug> [1604009484.768058] > > [modem0/bearer0] sending PDP context deactivation in primary port... > > Oct 29 22:11:24.772352 ModemManager[530]: <debug> > [1604009484.771977] > > [modem0/ttyACM1/at] device open count is 2 (open) Oct 29 > > 22:11:24.777015 ModemManager[530]: <debug> [1604009484.776642] > > [modem0/ttyACM1/at] --> 'AT+CGACT=0,1<CR>' > > Oct 29 22:11:24.966486 ModemManager[530]: <debug> > [1604009484.965979] > > [modem0/ttyACM1/at] <-- '<CR><LF>+CME ERROR: 202<CR><LF>' > > Oct 29 22:11:24.968238 ModemManager[530]: <debug> > [1604009484.967858] > > [modem0/ttyACM1/at] invalid mobile equipment error code: 202 > > > Is 202 a generic error code, or Cinterion specific? Did you look that up?
202 means "incorrect parameter" According to the ATC notes to the AT+CGACT command: - If activation or deactivation of a context fails, then AT+CEER may provide further informations about the reason. - For EPS, if an attempt is made to disconnect the last PDN connection, then the MT responds with ERROR or, if extended error responses are enabled, a +CME ERROR. this second clause applies here: it is not possible to deactivate the PDN linked with the LTE attach, as this would detach from the network completely. Best Regards, Giacinto
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