Debian 8.5 (MM 1.4.0) - SYSLOG
system loaded, I remove modem and soon put it to the USB port
.....................................................................................................
Jul 11 17:02:05 localhost kernel: [ 1850.919078] usb 1-4: USB disconnect, device number 11
Jul 11 17:02:05 localhost kernel: [ 1850.919245] sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
Jul 11 17:02:05 localhost kernel: [ 1850.919259] sierra 1-4:1.0: device disconnected
Jul 11 17:02:05 localhost ModemManager[863]: <info>  (tty/ttyUSB0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:09 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:02:13 localhost kernel: [ 1859.264027] usb 1-4: new high-speed USB device number 12 using ehci-pci
Jul 11 17:02:13 localhost kernel: [ 1859.397424] usb 1-4: config 1 has an invalid interface number: 7 but max is 4
Jul 11 17:02:13 localhost kernel: [ 1859.397429] usb 1-4: config 1 has no interface number 2
Jul 11 17:02:13 localhost kernel: [ 1859.398918] usb 1-4: New USB device found, idVendor=1199, idProduct=68a3
Jul 11 17:02:13 localhost kernel: [ 1859.398920] usb 1-4: New USB device strings: Mfr=3, Product=2, SerialNumber=4
Jul 11 17:02:13 localhost kernel: [ 1859.398922] usb 1-4: Product: AC318U
Jul 11 17:02:13 localhost kernel: [ 1859.398924] usb 1-4: Manufacturer: Sierra Wireless, Incorporated
Jul 11 17:02:13 localhost kernel: [ 1859.398926] usb 1-4: SerialNumber: 111111111111111
Jul 11 17:02:13 localhost kernel: [ 1859.401995] sierra 1-4:1.0: Sierra USB modem converter detected
Jul 11 17:02:13 localhost kernel: [ 1859.404179] usb 1-4: Sierra USB modem converter now attached to ttyUSB0
Jul 11 17:02:13 localhost kernel: [ 1859.404257] sierra 1-4:1.1: Sierra USB modem converter detected
Jul 11 17:02:13 localhost kernel: [ 1859.404606] usb 1-4: Sierra USB modem converter now attached to ttyUSB19
Jul 11 17:02:13 localhost kernel: [ 1859.404678] sierra 1-4:1.3: Sierra USB modem converter detected
Jul 11 17:02:13 localhost kernel: [ 1859.404979] usb 1-4: Sierra USB modem converter now attached to ttyUSB20
Jul 11 17:02:13 localhost kernel: [ 1859.405064] sierra 1-4:1.4: Sierra USB modem converter detected
Jul 11 17:02:13 localhost kernel: [ 1859.405353] usb 1-4: Sierra USB modem converter now attached to ttyUSB21
Jul 11 17:02:13 localhost kernel: [ 1859.406978] sierra_net 1-4:1.7 wwan0: register 'sierra_net' at usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem, be:02:3e:13:07:07
Jul 11 17:02:13 localhost mtp-probe: checking bus 1, device 12: "/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4"
Jul 11 17:02:13 localhost mtp-probe: bus: 1, device: 12 was not an MTP device
Jul 11 17:02:13 localhost ModemManager[863]: <warn>  (ttyUSB20): port attributes not fully set
Jul 11 17:02:13 localhost NetworkManager[864]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:02:13 localhost NetworkManager[864]: <info> device added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0): no ifupdown configuration found.
Jul 11 17:02:13 localhost ModemManager[863]: <warn>  (ttyUSB21): port attributes not fully set
Jul 11 17:02:13 localhost ModemManager[863]: <warn>  (ttyUSB19): port attributes not fully set
Jul 11 17:02:14 localhost ModemManager[863]: <warn>  (ttyUSB0): port attributes not fully set
Jul 11 17:02:17 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:02:25 localhost ModemManager[863]: <info>  Creating modem with plugin 'Sierra' and '5' ports
Jul 11 17:02:25 localhost ModemManager[863]: <warn>  Could not grab port (tty/ttyUSB0): 'Cannot add port 'tty/ttyUSB0', unhandled serial type'
Jul 11 17:02:25 localhost ModemManager[863]: <warn>  (ttyUSB20): port attributes not fully set
Jul 11 17:02:25 localhost ModemManager[863]: <info>  Modem for device at '/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4' successfully created
Jul 11 17:02:29 localhost ModemManager[863]: <info>  Modem: state changed (unknown -> disabled)
Jul 11 17:02:29 localhost NetworkManager[864]: <warn> (ttyUSB20): failed to look up interface index
Jul 11 17:02:29 localhost NetworkManager[864]: <info> (ttyUSB20): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Jul 11 17:02:29 localhost NetworkManager[864]: <info> (ttyUSB20): new Broadband device (driver: 'sierra, sierra_net' ifindex: 0)
Jul 11 17:02:29 localhost NetworkManager[864]: <info> (ttyUSB20): exported as /org/freedesktop/NetworkManager/Devices/8
Jul 11 17:02:29 localhost NetworkManager[864]: <info> (ttyUSB20): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jul 11 17:02:29 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/6: state changed (disabled -> enabling)
Jul 11 17:02:29 localhost ModemManager[863]: <warn>  (ttyUSB20): port attributes not fully set
Jul 11 17:02:29 localhost ModemManager[863]: <warn>  (ttyUSB21): port attributes not fully set
Jul 11 17:02:29 localhost NetworkManager[864]: <info> (ttyUSB20): preparing device
Jul 11 17:02:29 localhost NetworkManager[864]: <info> (ttyUSB20): modem state 'enabling'
Jul 11 17:02:29 localhost NetworkManager[864]: <info> (ttyUSB20): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jul 11 17:02:30 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/6: 3GPP Registration state changed (unknown -> registering)
Jul 11 17:02:30 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/6: 3GPP Registration state changed (registering -> home)
Jul 11 17:02:30 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/6: 3GPP location updated (MCC: '0', MNC: '0', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:02:30 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/6: 3GPP location updated (MCC: '260', MNC: '2', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:02:31 localhost ModemManager[863]: <info>  (tty/ttyUSB0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:31 localhost ModemManager[863]: <info>  (tty/ttyUSB19): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:31 localhost kernel: [ 1877.396122] usb 1-4: USB disconnect, device number 12
Jul 11 17:02:31 localhost kernel: [ 1877.396288] sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
Jul 11 17:02:31 localhost kernel: [ 1877.396303] sierra 1-4:1.0: device disconnected
Jul 11 17:02:31 localhost kernel: [ 1877.397046] sierra ttyUSB19: Sierra USB modem converter now disconnected from ttyUSB19
Jul 11 17:02:31 localhost kernel: [ 1877.397063] sierra 1-4:1.1: device disconnected
Jul 11 17:02:31 localhost kernel: [ 1877.399847] sierra ttyUSB20: Sierra USB modem converter now disconnected from ttyUSB20
Jul 11 17:02:31 localhost kernel: [ 1877.399862] sierra 1-4:1.3: device disconnected
Jul 11 17:02:31 localhost kernel: [ 1877.402761] sierra ttyUSB21: Sierra USB modem converter now disconnected from ttyUSB21
Jul 11 17:02:31 localhost kernel: [ 1877.402776] sierra 1-4:1.4: device disconnected
Jul 11 17:02:31 localhost ModemManager[863]: <info>  (tty/ttyUSB21): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:31 localhost avahi-daemon[881]: Withdrawing workstation service for wwan0.
Jul 11 17:02:31 localhost ModemManager[863]: <info>  (tty/ttyUSB20): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:31 localhost kernel: [ 1877.404220] sierra_net 1-4:1.7 wwan0: unregister 'sierra_net' usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem
Jul 11 17:02:31 localhost NetworkManager[864]: <info> devices removed (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:02:31 localhost ModemManager[863]: <info>  (net/wwan0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:31 localhost NetworkManager[864]: <info> (ttyUSB20): device state change: disconnected -> unmanaged (reason 'removed') [30 10 36]
Jul 11 17:02:31 localhost NetworkManager[864]: <warn> (ttyUSB20) failed to enable modem: GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Cancelled: Enabling cancelled
Jul 11 17:02:31 localhost kernel: [ 1877.420632] sierra_net 1-4:1.7 (unregistered net_device): usb_control_msg failed, status -19
Jul 11 17:02:35 localhost kernel: [ 1881.248028] usb 1-4: new high-speed USB device number 13 using ehci-pci
Jul 11 17:02:35 localhost kernel: [ 1881.381455] usb 1-4: config 1 has an invalid interface number: 7 but max is 4
Jul 11 17:02:35 localhost kernel: [ 1881.381461] usb 1-4: config 1 has no interface number 2
Jul 11 17:02:35 localhost kernel: [ 1881.382948] usb 1-4: New USB device found, idVendor=1199, idProduct=68a3
Jul 11 17:02:35 localhost kernel: [ 1881.382951] usb 1-4: New USB device strings: Mfr=3, Product=2, SerialNumber=4
Jul 11 17:02:35 localhost kernel: [ 1881.382953] usb 1-4: Product: AC318U
Jul 11 17:02:35 localhost kernel: [ 1881.382954] usb 1-4: Manufacturer: Sierra Wireless, Incorporated
Jul 11 17:02:35 localhost kernel: [ 1881.382956] usb 1-4: SerialNumber: 111111111111111
Jul 11 17:02:35 localhost kernel: [ 1881.385900] sierra 1-4:1.0: Sierra USB modem converter detected
Jul 11 17:02:35 localhost kernel: [ 1881.388124] usb 1-4: Sierra USB modem converter now attached to ttyUSB0
Jul 11 17:02:35 localhost kernel: [ 1881.388201] sierra 1-4:1.1: Sierra USB modem converter detected
Jul 11 17:02:35 localhost kernel: [ 1881.388516] usb 1-4: Sierra USB modem converter now attached to ttyUSB22
Jul 11 17:02:35 localhost kernel: [ 1881.388588] sierra 1-4:1.3: Sierra USB modem converter detected
Jul 11 17:02:35 localhost kernel: [ 1881.388884] usb 1-4: Sierra USB modem converter now attached to ttyUSB23
Jul 11 17:02:35 localhost kernel: [ 1881.388969] sierra 1-4:1.4: Sierra USB modem converter detected
Jul 11 17:02:35 localhost kernel: [ 1881.389257] usb 1-4: Sierra USB modem converter now attached to ttyUSB24
Jul 11 17:02:35 localhost kernel: [ 1881.390884] sierra_net 1-4:1.7 wwan0: register 'sierra_net' at usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem, be:02:3e:13:08:07
Jul 11 17:02:35 localhost mtp-probe: checking bus 1, device 13: "/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4"
Jul 11 17:02:35 localhost mtp-probe: bus: 1, device: 13 was not an MTP device
Jul 11 17:02:35 localhost ModemManager[863]: <warn>  (ttyUSB24): port attributes not fully set
Jul 11 17:02:35 localhost ModemManager[863]: <warn>  (ttyUSB22): port attributes not fully set
Jul 11 17:02:35 localhost ModemManager[863]: <warn>  (ttyUSB23): port attributes not fully set
Jul 11 17:02:35 localhost NetworkManager[864]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:02:35 localhost NetworkManager[864]: <info> device added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0): no ifupdown configuration found.
Jul 11 17:02:36 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:02:36 localhost ModemManager[863]: <warn>  (ttyUSB0): port attributes not fully set
Jul 11 17:02:40 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:02:47 localhost ModemManager[863]: <info>  Creating modem with plugin 'Sierra' and '5' ports
Jul 11 17:02:47 localhost ModemManager[863]: <warn>  Could not grab port (tty/ttyUSB0): 'Cannot add port 'tty/ttyUSB0', unhandled serial type'
Jul 11 17:02:47 localhost ModemManager[863]: <warn>  (ttyUSB23): port attributes not fully set
Jul 11 17:02:47 localhost ModemManager[863]: <info>  Modem for device at '/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4' successfully created
Jul 11 17:02:51 localhost ModemManager[863]: <info>  Modem: state changed (unknown -> disabled)
Jul 11 17:02:51 localhost NetworkManager[864]: <warn> (ttyUSB23): failed to look up interface index
Jul 11 17:02:51 localhost NetworkManager[864]: <info> (ttyUSB23): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Jul 11 17:02:51 localhost NetworkManager[864]: <info> (ttyUSB23): new Broadband device (driver: 'sierra, sierra_net' ifindex: 0)
Jul 11 17:02:51 localhost NetworkManager[864]: <info> (ttyUSB23): exported as /org/freedesktop/NetworkManager/Devices/9
Jul 11 17:02:51 localhost NetworkManager[864]: <info> (ttyUSB23): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jul 11 17:02:51 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/7: state changed (disabled -> enabling)
Jul 11 17:02:51 localhost NetworkManager[864]: <info> (ttyUSB23): preparing device
Jul 11 17:02:51 localhost NetworkManager[864]: <info> (ttyUSB23): modem state 'enabling'
Jul 11 17:02:51 localhost NetworkManager[864]: <info> (ttyUSB23): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jul 11 17:02:51 localhost ModemManager[863]: <warn>  (ttyUSB23): port attributes not fully set
Jul 11 17:02:51 localhost ModemManager[863]: <warn>  (ttyUSB24): port attributes not fully set
Jul 11 17:02:52 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/7: 3GPP Registration state changed (unknown -> registering)
Jul 11 17:02:52 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/7: 3GPP Registration state changed (registering -> home)
Jul 11 17:02:52 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/7: 3GPP location updated (MCC: '0', MNC: '0', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:02:52 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/7: 3GPP location updated (MCC: '260', MNC: '2', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:02:53 localhost ModemManager[863]: <info>  (tty/ttyUSB0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:53 localhost ModemManager[863]: <info>  (tty/ttyUSB22): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:53 localhost kernel: [ 1899.396291] usb 1-4: USB disconnect, device number 13
Jul 11 17:02:53 localhost kernel: [ 1899.396454] sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
Jul 11 17:02:53 localhost kernel: [ 1899.396469] sierra 1-4:1.0: device disconnected
Jul 11 17:02:53 localhost kernel: [ 1899.397153] sierra ttyUSB22: Sierra USB modem converter now disconnected from ttyUSB22
Jul 11 17:02:53 localhost kernel: [ 1899.397170] sierra 1-4:1.1: device disconnected
Jul 11 17:02:53 localhost kernel: [ 1899.400058] sierra ttyUSB23: Sierra USB modem converter now disconnected from ttyUSB23
Jul 11 17:02:53 localhost kernel: [ 1899.400073] sierra 1-4:1.3: device disconnected
Jul 11 17:02:53 localhost kernel: [ 1899.402767] sierra ttyUSB24: Sierra USB modem converter now disconnected from ttyUSB24
Jul 11 17:02:53 localhost kernel: [ 1899.402782] sierra 1-4:1.4: device disconnected
Jul 11 17:02:53 localhost avahi-daemon[881]: Withdrawing workstation service for wwan0.
Jul 11 17:02:53 localhost ModemManager[863]: <info>  (tty/ttyUSB24): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:53 localhost ModemManager[863]: <info>  (tty/ttyUSB23): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:53 localhost kernel: [ 1899.404212] sierra_net 1-4:1.7 wwan0: unregister 'sierra_net' usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem
Jul 11 17:02:53 localhost ModemManager[863]: <info>  (net/wwan0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:02:53 localhost NetworkManager[864]: <info> devices removed (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:02:53 localhost NetworkManager[864]: <info> (ttyUSB23): device state change: disconnected -> unmanaged (reason 'removed') [30 10 36]
Jul 11 17:02:53 localhost NetworkManager[864]: <warn> (ttyUSB23) failed to enable modem: GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Cancelled: Enabling cancelled
Jul 11 17:02:53 localhost kernel: [ 1899.423630] sierra_net 1-4:1.7 (unregistered net_device): usb_control_msg failed, status -19
Jul 11 17:02:57 localhost kernel: [ 1903.268028] usb 1-4: new high-speed USB device number 14 using ehci-pci
Jul 11 17:02:57 localhost kernel: [ 1903.401406] usb 1-4: config 1 has an invalid interface number: 7 but max is 4
Jul 11 17:02:57 localhost kernel: [ 1903.401412] usb 1-4: config 1 has no interface number 2
Jul 11 17:02:57 localhost kernel: [ 1903.402900] usb 1-4: New USB device found, idVendor=1199, idProduct=68a3
Jul 11 17:02:57 localhost kernel: [ 1903.402902] usb 1-4: New USB device strings: Mfr=3, Product=2, SerialNumber=4
Jul 11 17:02:57 localhost kernel: [ 1903.402904] usb 1-4: Product: AC318U
Jul 11 17:02:57 localhost kernel: [ 1903.402906] usb 1-4: Manufacturer: Sierra Wireless, Incorporated
Jul 11 17:02:57 localhost kernel: [ 1903.402908] usb 1-4: SerialNumber: 111111111111111
Jul 11 17:02:57 localhost kernel: [ 1903.405978] sierra 1-4:1.0: Sierra USB modem converter detected
Jul 11 17:02:57 localhost kernel: [ 1903.408192] usb 1-4: Sierra USB modem converter now attached to ttyUSB0
Jul 11 17:02:57 localhost kernel: [ 1903.408272] sierra 1-4:1.1: Sierra USB modem converter detected
Jul 11 17:02:57 localhost kernel: [ 1903.408588] usb 1-4: Sierra USB modem converter now attached to ttyUSB25
Jul 11 17:02:57 localhost kernel: [ 1903.408660] sierra 1-4:1.3: Sierra USB modem converter detected
Jul 11 17:02:57 localhost kernel: [ 1903.408961] usb 1-4: Sierra USB modem converter now attached to ttyUSB26
Jul 11 17:02:57 localhost kernel: [ 1903.409045] sierra 1-4:1.4: Sierra USB modem converter detected
Jul 11 17:02:57 localhost kernel: [ 1903.409334] usb 1-4: Sierra USB modem converter now attached to ttyUSB27
Jul 11 17:02:57 localhost kernel: [ 1903.411217] sierra_net 1-4:1.7 wwan0: register 'sierra_net' at usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem, be:02:3e:13:09:07
Jul 11 17:02:57 localhost mtp-probe: checking bus 1, device 14: "/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4"
Jul 11 17:02:57 localhost mtp-probe: bus: 1, device: 14 was not an MTP device
Jul 11 17:02:57 localhost ModemManager[863]: <warn>  (ttyUSB27): port attributes not fully set
Jul 11 17:02:57 localhost NetworkManager[864]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:02:57 localhost NetworkManager[864]: <info> device added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0): no ifupdown configuration found.
Jul 11 17:02:57 localhost ModemManager[863]: <warn>  (ttyUSB26): port attributes not fully set
Jul 11 17:02:57 localhost ModemManager[863]: <warn>  (ttyUSB25): port attributes not fully set
Jul 11 17:02:58 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:02:58 localhost ModemManager[863]: <warn>  (ttyUSB0): port attributes not fully set
Jul 11 17:03:02 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:03:09 localhost ModemManager[863]: <info>  Creating modem with plugin 'Sierra' and '5' ports
Jul 11 17:03:09 localhost ModemManager[863]: <warn>  Could not grab port (tty/ttyUSB0): 'Cannot add port 'tty/ttyUSB0', unhandled serial type'
Jul 11 17:03:09 localhost ModemManager[863]: <warn>  (ttyUSB26): port attributes not fully set
Jul 11 17:03:09 localhost ModemManager[863]: <info>  Modem for device at '/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4' successfully created
Jul 11 17:03:13 localhost ModemManager[863]: <info>  Modem: state changed (unknown -> disabled)
Jul 11 17:03:13 localhost NetworkManager[864]: <warn> (ttyUSB26): failed to look up interface index
Jul 11 17:03:13 localhost NetworkManager[864]: <info> (ttyUSB26): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Jul 11 17:03:13 localhost NetworkManager[864]: <info> (ttyUSB26): new Broadband device (driver: 'sierra, sierra_net' ifindex: 0)
Jul 11 17:03:13 localhost NetworkManager[864]: <info> (ttyUSB26): exported as /org/freedesktop/NetworkManager/Devices/10
Jul 11 17:03:13 localhost NetworkManager[864]: <info> (ttyUSB26): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jul 11 17:03:13 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/8: state changed (disabled -> enabling)
Jul 11 17:03:13 localhost NetworkManager[864]: <info> (ttyUSB26): preparing device
Jul 11 17:03:13 localhost NetworkManager[864]: <info> (ttyUSB26): modem state 'enabling'
Jul 11 17:03:13 localhost NetworkManager[864]: <info> (ttyUSB26): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jul 11 17:03:13 localhost ModemManager[863]: <warn>  (ttyUSB26): port attributes not fully set
Jul 11 17:03:13 localhost ModemManager[863]: <warn>  (ttyUSB27): port attributes not fully set
Jul 11 17:03:14 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/8: 3GPP Registration state changed (unknown -> registering)
Jul 11 17:03:14 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/8: 3GPP Registration state changed (registering -> home)
Jul 11 17:03:14 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/8: 3GPP location updated (MCC: '0', MNC: '0', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:03:14 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/8: 3GPP location updated (MCC: '260', MNC: '2', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:03:15 localhost kernel: [ 1921.407976] usb 1-4: USB disconnect, device number 14
Jul 11 17:03:15 localhost ModemManager[863]: <info>  (tty/ttyUSB0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:15 localhost kernel: [ 1921.408425] sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
Jul 11 17:03:15 localhost kernel: [ 1921.408447] sierra 1-4:1.0: device disconnected
Jul 11 17:03:15 localhost kernel: [ 1921.409121] sierra ttyUSB25: Sierra USB modem converter now disconnected from ttyUSB25
Jul 11 17:03:15 localhost kernel: [ 1921.409136] sierra 1-4:1.1: device disconnected
Jul 11 17:03:15 localhost kernel: [ 1921.411750] sierra ttyUSB26: Sierra USB modem converter now disconnected from ttyUSB26
Jul 11 17:03:15 localhost kernel: [ 1921.411764] sierra 1-4:1.3: device disconnected
Jul 11 17:03:15 localhost ModemManager[863]: <info>  (tty/ttyUSB25): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:15 localhost ModemManager[863]: <info>  (tty/ttyUSB27): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:15 localhost kernel: [ 1921.414285] sierra ttyUSB27: Sierra USB modem converter now disconnected from ttyUSB27
Jul 11 17:03:15 localhost kernel: [ 1921.414299] sierra 1-4:1.4: device disconnected
Jul 11 17:03:15 localhost avahi-daemon[881]: Withdrawing workstation service for wwan0.
Jul 11 17:03:15 localhost ModemManager[863]: <info>  (tty/ttyUSB26): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:15 localhost kernel: [ 1921.416161] sierra_net 1-4:1.7 wwan0: unregister 'sierra_net' usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem
Jul 11 17:03:15 localhost ModemManager[863]: <info>  (net/wwan0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:15 localhost NetworkManager[864]: <info> devices removed (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:03:15 localhost NetworkManager[864]: <info> (ttyUSB26): device state change: disconnected -> unmanaged (reason 'removed') [30 10 36]
Jul 11 17:03:15 localhost NetworkManager[864]: <warn> (ttyUSB26) failed to enable modem: GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Cancelled: Enabling cancelled
Jul 11 17:03:15 localhost kernel: [ 1921.435135] sierra_net 1-4:1.7 (unregistered net_device): usb_control_msg failed, status -19
Jul 11 17:03:19 localhost kernel: [ 1925.232029] usb 1-4: new high-speed USB device number 15 using ehci-pci
Jul 11 17:03:19 localhost kernel: [ 1925.365484] usb 1-4: config 1 has an invalid interface number: 7 but max is 4
Jul 11 17:03:19 localhost kernel: [ 1925.365489] usb 1-4: config 1 has no interface number 2
Jul 11 17:03:19 localhost kernel: [ 1925.366977] usb 1-4: New USB device found, idVendor=1199, idProduct=68a3
Jul 11 17:03:19 localhost kernel: [ 1925.366980] usb 1-4: New USB device strings: Mfr=3, Product=2, SerialNumber=4
Jul 11 17:03:19 localhost kernel: [ 1925.366982] usb 1-4: Product: AC318U
Jul 11 17:03:19 localhost kernel: [ 1925.366983] usb 1-4: Manufacturer: Sierra Wireless, Incorporated
Jul 11 17:03:19 localhost kernel: [ 1925.366985] usb 1-4: SerialNumber: 111111111111111
Jul 11 17:03:19 localhost kernel: [ 1925.369929] sierra 1-4:1.0: Sierra USB modem converter detected
Jul 11 17:03:19 localhost kernel: [ 1925.372194] usb 1-4: Sierra USB modem converter now attached to ttyUSB0
Jul 11 17:03:19 localhost kernel: [ 1925.372274] sierra 1-4:1.1: Sierra USB modem converter detected
Jul 11 17:03:19 localhost kernel: [ 1925.372665] usb 1-4: Sierra USB modem converter now attached to ttyUSB28
Jul 11 17:03:19 localhost kernel: [ 1925.372738] sierra 1-4:1.3: Sierra USB modem converter detected
Jul 11 17:03:19 localhost kernel: [ 1925.373038] usb 1-4: Sierra USB modem converter now attached to ttyUSB29
Jul 11 17:03:19 localhost kernel: [ 1925.373124] sierra 1-4:1.4: Sierra USB modem converter detected
Jul 11 17:03:19 localhost kernel: [ 1925.373416] usb 1-4: Sierra USB modem converter now attached to ttyUSB30
Jul 11 17:03:19 localhost kernel: [ 1925.375041] sierra_net 1-4:1.7 wwan0: register 'sierra_net' at usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem, be:02:3e:13:0a:07
Jul 11 17:03:19 localhost mtp-probe: checking bus 1, device 15: "/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4"
Jul 11 17:03:19 localhost mtp-probe: bus: 1, device: 15 was not an MTP device
Jul 11 17:03:19 localhost ModemManager[863]: <warn>  (ttyUSB29): port attributes not fully set
Jul 11 17:03:19 localhost ModemManager[863]: <warn>  (ttyUSB30): port attributes not fully set
Jul 11 17:03:19 localhost ModemManager[863]: <warn>  (ttyUSB28): port attributes not fully set
Jul 11 17:03:19 localhost NetworkManager[864]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:03:19 localhost NetworkManager[864]: <info> device added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0): no ifupdown configuration found.
Jul 11 17:03:20 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:03:20 localhost ModemManager[863]: <warn>  (ttyUSB0): port attributes not fully set
Jul 11 17:03:24 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:03:31 localhost ModemManager[863]: <info>  Creating modem with plugin 'Sierra' and '5' ports
Jul 11 17:03:31 localhost ModemManager[863]: <warn>  Could not grab port (tty/ttyUSB0): 'Cannot add port 'tty/ttyUSB0', unhandled serial type'
Jul 11 17:03:31 localhost ModemManager[863]: <warn>  (ttyUSB29): port attributes not fully set
Jul 11 17:03:31 localhost ModemManager[863]: <info>  Modem for device at '/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4' successfully created
Jul 11 17:03:35 localhost ModemManager[863]: <info>  Modem: state changed (unknown -> disabled)
Jul 11 17:03:35 localhost NetworkManager[864]: <warn> (ttyUSB29): failed to look up interface index
Jul 11 17:03:35 localhost NetworkManager[864]: <info> (ttyUSB29): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Jul 11 17:03:35 localhost NetworkManager[864]: <info> (ttyUSB29): new Broadband device (driver: 'sierra, sierra_net' ifindex: 0)
Jul 11 17:03:35 localhost NetworkManager[864]: <info> (ttyUSB29): exported as /org/freedesktop/NetworkManager/Devices/11
Jul 11 17:03:35 localhost NetworkManager[864]: <info> (ttyUSB29): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jul 11 17:03:35 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/9: state changed (disabled -> enabling)
Jul 11 17:03:35 localhost NetworkManager[864]: <info> (ttyUSB29): preparing device
Jul 11 17:03:35 localhost NetworkManager[864]: <info> (ttyUSB29): modem state 'enabling'
Jul 11 17:03:35 localhost NetworkManager[864]: <info> (ttyUSB29): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jul 11 17:03:35 localhost ModemManager[863]: <warn>  (ttyUSB29): port attributes not fully set
Jul 11 17:03:35 localhost ModemManager[863]: <warn>  (ttyUSB30): port attributes not fully set
Jul 11 17:03:36 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/9: 3GPP Registration state changed (unknown -> registering)
Jul 11 17:03:36 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/9: 3GPP Registration state changed (registering -> home)
Jul 11 17:03:36 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/9: 3GPP location updated (MCC: '0', MNC: '0', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:03:36 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/9: 3GPP location updated (MCC: '260', MNC: '2', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:03:37 localhost ModemManager[863]: <info>  (tty/ttyUSB28): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:37 localhost kernel: [ 1943.421302] usb 1-4: USB disconnect, device number 15
Jul 11 17:03:37 localhost kernel: [ 1943.421471] sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
Jul 11 17:03:37 localhost kernel: [ 1943.421486] sierra 1-4:1.0: device disconnected
Jul 11 17:03:37 localhost kernel: [ 1943.421814] sierra ttyUSB28: Sierra USB modem converter now disconnected from ttyUSB28
Jul 11 17:03:37 localhost kernel: [ 1943.421823] sierra 1-4:1.1: device disconnected
Jul 11 17:03:37 localhost ModemManager[863]: <info>  (tty/ttyUSB0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:37 localhost kernel: [ 1943.424901] sierra ttyUSB29: Sierra USB modem converter now disconnected from ttyUSB29
Jul 11 17:03:37 localhost kernel: [ 1943.424915] sierra 1-4:1.3: device disconnected
Jul 11 17:03:37 localhost kernel: [ 1943.427554] sierra ttyUSB30: Sierra USB modem converter now disconnected from ttyUSB30
Jul 11 17:03:37 localhost kernel: [ 1943.427569] sierra 1-4:1.4: device disconnected
Jul 11 17:03:37 localhost ModemManager[863]: <info>  (tty/ttyUSB30): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:37 localhost kernel: [ 1943.429833] sierra_net 1-4:1.7 wwan0: unregister 'sierra_net' usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem
Jul 11 17:03:37 localhost avahi-daemon[881]: Withdrawing workstation service for wwan0.
Jul 11 17:03:37 localhost ModemManager[863]: <info>  (tty/ttyUSB29): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:37 localhost ModemManager[863]: <info>  (net/wwan0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:37 localhost NetworkManager[864]: <info> devices removed (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:03:37 localhost NetworkManager[864]: <info> (ttyUSB29): device state change: disconnected -> unmanaged (reason 'removed') [30 10 36]
Jul 11 17:03:37 localhost NetworkManager[864]: <warn> (ttyUSB29) failed to enable modem: GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Cancelled: Enabling cancelled
Jul 11 17:03:37 localhost kernel: [ 1943.444828] sierra_net 1-4:1.7 (unregistered net_device): usb_control_msg failed, status -19
Jul 11 17:03:41 localhost kernel: [ 1947.264024] usb 1-4: new high-speed USB device number 16 using ehci-pci
Jul 11 17:03:41 localhost kernel: [ 1947.397402] usb 1-4: config 1 has an invalid interface number: 7 but max is 4
Jul 11 17:03:41 localhost kernel: [ 1947.397407] usb 1-4: config 1 has no interface number 2
Jul 11 17:03:41 localhost kernel: [ 1947.398896] usb 1-4: New USB device found, idVendor=1199, idProduct=68a3
Jul 11 17:03:41 localhost kernel: [ 1947.398898] usb 1-4: New USB device strings: Mfr=3, Product=2, SerialNumber=4
Jul 11 17:03:41 localhost kernel: [ 1947.398900] usb 1-4: Product: AC318U
Jul 11 17:03:41 localhost kernel: [ 1947.398902] usb 1-4: Manufacturer: Sierra Wireless, Incorporated
Jul 11 17:03:41 localhost kernel: [ 1947.398903] usb 1-4: SerialNumber: 111111111111111
Jul 11 17:03:41 localhost kernel: [ 1947.401971] sierra 1-4:1.0: Sierra USB modem converter detected
Jul 11 17:03:41 localhost kernel: [ 1947.404280] usb 1-4: Sierra USB modem converter now attached to ttyUSB0
Jul 11 17:03:41 localhost kernel: [ 1947.404392] sierra 1-4:1.1: Sierra USB modem converter detected
Jul 11 17:03:41 localhost kernel: [ 1947.404723] usb 1-4: Sierra USB modem converter now attached to ttyUSB31
Jul 11 17:03:41 localhost kernel: [ 1947.404809] sierra 1-4:1.3: Sierra USB modem converter detected
Jul 11 17:03:41 localhost kernel: [ 1947.405084] usb 1-4: Sierra USB modem converter now attached to ttyUSB32
Jul 11 17:03:41 localhost kernel: [ 1947.405176] sierra 1-4:1.4: Sierra USB modem converter detected
Jul 11 17:03:41 localhost kernel: [ 1947.405457] usb 1-4: Sierra USB modem converter now attached to ttyUSB33
Jul 11 17:03:41 localhost kernel: [ 1947.407085] sierra_net 1-4:1.7 wwan0: register 'sierra_net' at usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem, be:02:3e:13:0b:07
Jul 11 17:03:41 localhost mtp-probe: checking bus 1, device 16: "/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4"
Jul 11 17:03:41 localhost mtp-probe: bus: 1, device: 16 was not an MTP device
Jul 11 17:03:41 localhost ModemManager[863]: <warn>  (ttyUSB32): port attributes not fully set
Jul 11 17:03:41 localhost ModemManager[863]: <warn>  (ttyUSB33): port attributes not fully set
Jul 11 17:03:41 localhost NetworkManager[864]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:03:41 localhost NetworkManager[864]: <info> device added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0): no ifupdown configuration found.
Jul 11 17:03:41 localhost ModemManager[863]: <warn>  (ttyUSB31): port attributes not fully set
Jul 11 17:03:42 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:03:42 localhost ModemManager[863]: <warn>  (ttyUSB0): port attributes not fully set
Jul 11 17:03:46 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:03:53 localhost ModemManager[863]: <info>  Creating modem with plugin 'Sierra' and '5' ports
Jul 11 17:03:53 localhost ModemManager[863]: <warn>  Could not grab port (tty/ttyUSB0): 'Cannot add port 'tty/ttyUSB0', unhandled serial type'
Jul 11 17:03:53 localhost ModemManager[863]: <warn>  (ttyUSB32): port attributes not fully set
Jul 11 17:03:53 localhost ModemManager[863]: <info>  Modem for device at '/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4' successfully created
Jul 11 17:03:57 localhost ModemManager[863]: <info>  Modem: state changed (unknown -> disabled)
Jul 11 17:03:57 localhost NetworkManager[864]: <warn> (ttyUSB32): failed to look up interface index
Jul 11 17:03:57 localhost NetworkManager[864]: <info> (ttyUSB32): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Jul 11 17:03:57 localhost NetworkManager[864]: <info> (ttyUSB32): new Broadband device (driver: 'sierra, sierra_net' ifindex: 0)
Jul 11 17:03:57 localhost NetworkManager[864]: <info> (ttyUSB32): exported as /org/freedesktop/NetworkManager/Devices/12
Jul 11 17:03:57 localhost NetworkManager[864]: <info> (ttyUSB32): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jul 11 17:03:57 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/10: state changed (disabled -> enabling)
Jul 11 17:03:57 localhost NetworkManager[864]: <info> (ttyUSB32): preparing device
Jul 11 17:03:57 localhost NetworkManager[864]: <info> (ttyUSB32): modem state 'enabling'
Jul 11 17:03:57 localhost NetworkManager[864]: <info> (ttyUSB32): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jul 11 17:03:57 localhost ModemManager[863]: <warn>  (ttyUSB32): port attributes not fully set
Jul 11 17:03:57 localhost ModemManager[863]: <warn>  (ttyUSB33): port attributes not fully set
Jul 11 17:03:58 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/10: 3GPP Registration state changed (unknown -> registering)
Jul 11 17:03:58 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/10: 3GPP Registration state changed (registering -> home)
Jul 11 17:03:58 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/10: 3GPP location updated (MCC: '0', MNC: '0', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:03:58 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/10: 3GPP location updated (MCC: '260', MNC: '2', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:03:59 localhost kernel: [ 1965.391223] usb 1-4: USB disconnect, device number 16
Jul 11 17:03:59 localhost kernel: [ 1965.391388] sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
Jul 11 17:03:59 localhost kernel: [ 1965.391406] sierra 1-4:1.0: device disconnected
Jul 11 17:03:59 localhost kernel: [ 1965.391998] sierra ttyUSB31: Sierra USB modem converter now disconnected from ttyUSB31
Jul 11 17:03:59 localhost kernel: [ 1965.392052] sierra 1-4:1.1: device disconnected
Jul 11 17:03:59 localhost ModemManager[863]: <info>  (tty/ttyUSB31): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:59 localhost ModemManager[863]: <info>  (tty/ttyUSB0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:59 localhost kernel: [ 1965.395115] sierra ttyUSB32: Sierra USB modem converter now disconnected from ttyUSB32
Jul 11 17:03:59 localhost kernel: [ 1965.395130] sierra 1-4:1.3: device disconnected
Jul 11 17:03:59 localhost kernel: [ 1965.398423] sierra ttyUSB33: Sierra USB modem converter now disconnected from ttyUSB33
Jul 11 17:03:59 localhost kernel: [ 1965.398438] sierra 1-4:1.4: device disconnected
Jul 11 17:03:59 localhost ModemManager[863]: <info>  (tty/ttyUSB33): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:59 localhost avahi-daemon[881]: Withdrawing workstation service for wwan0.
Jul 11 17:03:59 localhost ModemManager[863]: <info>  (tty/ttyUSB32): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:59 localhost kernel: [ 1965.400313] sierra_net 1-4:1.7 wwan0: unregister 'sierra_net' usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem
Jul 11 17:03:59 localhost ModemManager[863]: <info>  (net/wwan0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:03:59 localhost NetworkManager[864]: <info> devices removed (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:03:59 localhost NetworkManager[864]: <info> (ttyUSB32): device state change: disconnected -> unmanaged (reason 'removed') [30 10 36]
Jul 11 17:03:59 localhost NetworkManager[864]: <warn> (ttyUSB32) failed to enable modem: GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Cancelled: Enabling cancelled
Jul 11 17:03:59 localhost kernel: [ 1965.420453] sierra_net 1-4:1.7 (unregistered net_device): usb_control_msg failed, status -19
Jul 11 17:04:03 localhost kernel: [ 1969.240027] usb 1-4: new high-speed USB device number 17 using ehci-pci
Jul 11 17:04:03 localhost kernel: [ 1969.373419] usb 1-4: config 1 has an invalid interface number: 7 but max is 4
Jul 11 17:04:03 localhost kernel: [ 1969.373425] usb 1-4: config 1 has no interface number 2
Jul 11 17:04:03 localhost kernel: [ 1969.374914] usb 1-4: New USB device found, idVendor=1199, idProduct=68a3
Jul 11 17:04:03 localhost kernel: [ 1969.374916] usb 1-4: New USB device strings: Mfr=3, Product=2, SerialNumber=4
Jul 11 17:04:03 localhost kernel: [ 1969.374918] usb 1-4: Product: AC318U
Jul 11 17:04:03 localhost kernel: [ 1969.374920] usb 1-4: Manufacturer: Sierra Wireless, Incorporated
Jul 11 17:04:03 localhost kernel: [ 1969.374921] usb 1-4: SerialNumber: 111111111111111
Jul 11 17:04:03 localhost kernel: [ 1969.377991] sierra 1-4:1.0: Sierra USB modem converter detected
Jul 11 17:04:03 localhost kernel: [ 1969.380302] usb 1-4: Sierra USB modem converter now attached to ttyUSB0
Jul 11 17:04:03 localhost kernel: [ 1969.380411] sierra 1-4:1.1: Sierra USB modem converter detected
Jul 11 17:04:03 localhost kernel: [ 1969.380742] usb 1-4: Sierra USB modem converter now attached to ttyUSB34
Jul 11 17:04:03 localhost kernel: [ 1969.380827] sierra 1-4:1.3: Sierra USB modem converter detected
Jul 11 17:04:03 localhost kernel: [ 1969.381101] usb 1-4: Sierra USB modem converter now attached to ttyUSB35
Jul 11 17:04:03 localhost kernel: [ 1969.381189] sierra 1-4:1.4: Sierra USB modem converter detected
Jul 11 17:04:03 localhost kernel: [ 1969.381473] usb 1-4: Sierra USB modem converter now attached to ttyUSB36
Jul 11 17:04:03 localhost kernel: [ 1969.383351] sierra_net 1-4:1.7 wwan0: register 'sierra_net' at usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem, be:02:3e:13:0c:07
Jul 11 17:04:03 localhost mtp-probe: checking bus 1, device 17: "/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4"
Jul 11 17:04:03 localhost mtp-probe: bus: 1, device: 17 was not an MTP device
Jul 11 17:04:03 localhost ModemManager[863]: <warn>  (ttyUSB36): port attributes not fully set
Jul 11 17:04:03 localhost ModemManager[863]: <warn>  (ttyUSB34): port attributes not fully set
Jul 11 17:04:03 localhost ModemManager[863]: <warn>  (ttyUSB35): port attributes not fully set
Jul 11 17:04:03 localhost NetworkManager[864]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:04:03 localhost NetworkManager[864]: <info> device added (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0): no ifupdown configuration found.
Jul 11 17:04:04 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:04:04 localhost ModemManager[863]: <warn>  (ttyUSB0): port attributes not fully set
Jul 11 17:04:08 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:04:15 localhost ModemManager[863]: <info>  Creating modem with plugin 'Sierra' and '5' ports
Jul 11 17:04:15 localhost ModemManager[863]: <warn>  Could not grab port (tty/ttyUSB0): 'Cannot add port 'tty/ttyUSB0', unhandled serial type'
Jul 11 17:04:15 localhost ModemManager[863]: <warn>  (ttyUSB35): port attributes not fully set
Jul 11 17:04:15 localhost ModemManager[863]: <info>  Modem for device at '/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4' successfully created
Jul 11 17:04:19 localhost ModemManager[863]: <info>  Modem: state changed (unknown -> disabled)
Jul 11 17:04:19 localhost NetworkManager[864]: <warn> (ttyUSB35): failed to look up interface index
Jul 11 17:04:19 localhost NetworkManager[864]: <info> (ttyUSB35): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Jul 11 17:04:19 localhost NetworkManager[864]: <info> (ttyUSB35): new Broadband device (driver: 'sierra, sierra_net' ifindex: 0)
Jul 11 17:04:19 localhost NetworkManager[864]: <info> (ttyUSB35): exported as /org/freedesktop/NetworkManager/Devices/13
Jul 11 17:04:19 localhost NetworkManager[864]: <info> (ttyUSB35): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jul 11 17:04:19 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/11: state changed (disabled -> enabling)
Jul 11 17:04:19 localhost NetworkManager[864]: <info> (ttyUSB35): preparing device
Jul 11 17:04:19 localhost NetworkManager[864]: <info> (ttyUSB35): modem state 'enabling'
Jul 11 17:04:19 localhost NetworkManager[864]: <info> (ttyUSB35): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jul 11 17:04:19 localhost ModemManager[863]: <warn>  (ttyUSB35): port attributes not fully set
Jul 11 17:04:19 localhost ModemManager[863]: <warn>  (ttyUSB36): port attributes not fully set
Jul 11 17:04:20 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/11: 3GPP Registration state changed (unknown -> registering)
Jul 11 17:04:20 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/11: 3GPP Registration state changed (registering -> home)
Jul 11 17:04:20 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/11: 3GPP location updated (MCC: '0', MNC: '0', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:04:20 localhost ModemManager[863]: <info>  Modem /org/freedesktop/ModemManager1/Modem/11: 3GPP location updated (MCC: '260', MNC: '2', Location area code: 'DFDE', Cell ID: '2BEAC7D')
Jul 11 17:04:21 localhost kernel: [ 1987.394741] usb 1-4: USB disconnect, device number 17
Jul 11 17:04:21 localhost kernel: [ 1987.394911] sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
Jul 11 17:04:21 localhost kernel: [ 1987.394927] sierra 1-4:1.0: device disconnected
Jul 11 17:04:21 localhost kernel: [ 1987.395252] sierra ttyUSB34: Sierra USB modem converter now disconnected from ttyUSB34
Jul 11 17:04:21 localhost kernel: [ 1987.395262] sierra 1-4:1.1: device disconnected
Jul 11 17:04:21 localhost ModemManager[863]: <info>  (tty/ttyUSB34): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:04:21 localhost ModemManager[863]: <info>  (tty/ttyUSB0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:04:21 localhost kernel: [ 1987.398185] sierra ttyUSB35: Sierra USB modem converter now disconnected from ttyUSB35
Jul 11 17:04:21 localhost kernel: [ 1987.398199] sierra 1-4:1.3: device disconnected
Jul 11 17:04:21 localhost ModemManager[863]: <info>  (tty/ttyUSB35): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:04:21 localhost kernel: [ 1987.400571] sierra ttyUSB36: Sierra USB modem converter now disconnected from ttyUSB36
Jul 11 17:04:21 localhost kernel: [ 1987.400586] sierra 1-4:1.4: device disconnected
Jul 11 17:04:21 localhost kernel: [ 1987.402897] sierra_net 1-4:1.7 wwan0: unregister 'sierra_net' usb-0000:00:02.1-4, Sierra Wireless USB-to-WWAN Modem
Jul 11 17:04:21 localhost avahi-daemon[881]: Withdrawing workstation service for wwan0.
Jul 11 17:04:21 localhost ModemManager[863]: <info>  (net/wwan0): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:04:21 localhost ModemManager[863]: <info>  (tty/ttyUSB36): released by modem /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4
Jul 11 17:04:21 localhost kernel: [ 1987.416526] sierra_net 1-4:1.7 (unregistered net_device): usb_control_msg failed, status -19
Jul 11 17:04:21 localhost NetworkManager[864]: <info> devices removed (path: /sys/devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.7/net/wwan0, iface: wwan0)
Jul 11 17:04:21 localhost NetworkManager[864]: <info> (ttyUSB35): device state change: disconnected -> unmanaged (reason 'removed') [30 10 36]
Jul 11 17:04:21 localhost NetworkManager[864]: <warn> (ttyUSB35) failed to enable modem: GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Cancelled: Enabling cancelled
Jul 11 17:04:22 localhost kernel: [ 1987.908038] usb 1-4: new high-speed USB device number 18 using ehci-pci
Jul 11 17:04:22 localhost kernel: [ 1988.042146] usb 1-4: New USB device found, idVendor=1199, idProduct=68a3
Jul 11 17:04:22 localhost kernel: [ 1988.042150] usb 1-4: New USB device strings: Mfr=3, Product=2, SerialNumber=4
Jul 11 17:04:22 localhost kernel: [ 1988.042152] usb 1-4: Product: AC318U
Jul 11 17:04:22 localhost kernel: [ 1988.042154] usb 1-4: Manufacturer: Sierra Wireless, Incorporated
Jul 11 17:04:22 localhost kernel: [ 1988.042155] usb 1-4: SerialNumber: 111111111111111
Jul 11 17:04:22 localhost kernel: [ 1988.043067] sierra 1-4:1.0: Sierra USB modem converter detected
Jul 11 17:04:22 localhost kernel: [ 1988.043353] usb 1-4: Sierra USB modem converter now attached to ttyUSB0
Jul 11 17:04:22 localhost mtp-probe: checking bus 1, device 18: "/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4"
Jul 11 17:04:22 localhost mtp-probe: bus: 1, device: 18 was not an MTP device
Jul 11 17:04:23 localhost ModemManager[863]: <warn>  (ttyUSB0): port attributes not fully set
Jul 11 17:04:25 localhost colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1
Jul 11 17:04:41 localhost ModemManager[863]: <info>  Creating modem with plugin 'Sierra' and '1' ports
Jul 11 17:04:41 localhost ModemManager[863]: <warn>  Could not grab port (tty/ttyUSB0): 'Cannot add port 'tty/ttyUSB0', unhandled serial type'
Jul 11 17:04:41 localhost ModemManager[863]: <warn>  Couldn't create modem for device at '/sys/devices/pci0000:00/0000:00:02.1/usb1/1-4': Failed to find primary AT port

During the above (from 17:02:05 to 17:04:41) I typed in the terminal (over a dozen) and the answer was as you can see below:
user@debian:~/Desktop$ ls /dev/ttyUSB*
/dev/ttyUSB0  /dev/ttyUSB19  /dev/ttyUSB20  /dev/ttyUSB21
user@debian:~/Desktop$ ls /dev/ttyUSB*
/dev/ttyUSB0  /dev/ttyUSB22  /dev/ttyUSB23  /dev/ttyUSB24
user@debian:~/Desktop$ ls /dev/ttyUSB*
/dev/ttyUSB0  /dev/ttyUSB25  /dev/ttyUSB26  /dev/ttyUSB27
user@debian:~/Desktop$ ls /dev/ttyUSB*
/dev/ttyUSB0  /dev/ttyUSB28  /dev/ttyUSB29  /dev/ttyUSB30
user@debian:~/Desktop$ ls /dev/ttyUSB*
/dev/ttyUSB0  /dev/ttyUSB31  /dev/ttyUSB32  /dev/ttyUSB33
user@debian:~/Desktop$ ls /dev/ttyUSB*
/dev/ttyUSB0  /dev/ttyUSB34  /dev/ttyUSB35  /dev/ttyUSB36

but after 17:04:41 the answer was quite different (quite differently than in the Xubuntu 14.04 but identical in Xubuntu 16.04)
user@debian:~/Desktop$ ls /dev/ttyUSB*
/dev/ttyUSB0
...as a result of this "17:04:41... Failed to find primary AT port" ??

user@debian:~/Desktop$ mmcli -L
No modems were found

user@debian:~/Desktop$ lsusb | grep sierra
Bus 001 Device 018: ID 1199:68a3 Sierra Wireless, Inc. MC8700 Modem

No "Mobile modem" in NM menu (quite differently than in the Xubuntu 14.04).
When re-insert modem, this above situation repeats