Modem has stopped responding to most commands

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  • May 3, 2012 at 12:35 am #2735
    Darrell Hollis
    Participant

    One week in and the modem is now unresponsive on ttyUSB3, except for really basic commands. It will not connect at all. ttyUSB4 still responds to the subset it was using before, but does not connect either. The radio seems to reset if you try to force a connection or AT+CREG?. Reboots and unplugging haven’t helped.

    May 2 20:18:28 wgardr user.info kernel: usb 1-1: new full speed USB device using at91_ohci and address 3

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: New USB device found, idVendor=1199, idProduct=683c

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: New USB device strings: Mfr=3, Product=2, SerialNumber=0

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Product: MC8790V

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Manufacturer: Sierra Wireless, Incorporated

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: configuration #1 chosen from 1 choice

    May 2 20:18:29 wgardr user.info kernel: sierra 1-1:1.0: Sierra USB modem converter detected

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: APM supported, enabling autosuspend.

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Sierra USB modem converter now attached to ttyUSB0

    May 2 20:18:29 wgardr user.info kernel: sierra 1-1:1.1: Sierra USB modem converter detected

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: APM supported, enabling autosuspend.

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Sierra USB modem converter now attached to ttyUSB1

    May 2 20:18:29 wgardr user.info kernel: sierra 1-1:1.2: Sierra USB modem converter detected

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: APM supported, enabling autosuspend.

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Sierra USB modem converter now attached to ttyUSB2

    May 2 20:18:29 wgardr user.info kernel: sierra 1-1:1.3: Sierra USB modem converter detected

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: APM supported, enabling autosuspend.

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Sierra USB modem converter now attached to ttyUSB3

    May 2 20:18:29 wgardr user.info kernel: sierra 1-1:1.4: Sierra USB modem converter detected

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: APM supported, enabling autosuspend.

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Sierra USB modem converter now attached to ttyUSB4

    May 2 20:18:29 wgardr user.info kernel: sierra 1-1:1.5: Sierra USB modem converter detected

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: APM supported, enabling autosuspend.

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Sierra USB modem converter now attached to ttyUSB5

    May 2 20:18:29 wgardr user.info kernel: sierra 1-1:1.6: Sierra USB modem converter detected

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: APM supported, enabling autosuspend.

    May 2 20:18:29 wgardr user.info kernel: usb 1-1: Sierra USB modem converter now attached to ttyUSB6

    May 3, 2012 at 12:49 am #3871
    Darrell Hollis
    Participant

    Well, for no apparent reason, leaving it off for a while and turning it back on seems to be magic and it works again…

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