Sierra Wireless AT&T WWAN issue

Hi - I've got a Lenovo Thinkpad X300 with an OEM Sierra Wireles MC8775 HSDPA card, driver 2.0.9.0, 1/11/2007. It has worked fine except in two instances: first when traveling from the US to Switzerland, upon arrival it "failed to initialize" the device as I tried to run the dialer. This was true despite cold restarts. About a day later it started working, and working consistently, in Switzerland. Upon return to the US exactly the same phenomenon: unable to initialize for about a day. Then, working fine.Lenovo is ready to replace the card, but does anyone know if this is a software or other glitch for which I shouldn't trouble them? Something having to do with switching countries?  (And do I appear to be running the latest firmware/drivers? Firmware is H1_1_9_3MCAP.)
Thanks,JZ

To follow up for any that come later: the card was replaced, but experienced the same phenomenon in going to the Netherlands and back again to the US.  This time I downloaded and ran the "Sierra Wireless Watcher."  After the wireless radio was turned on it sat at "searching..." for about five minutes, then found the new band.  Once found it sticks, so the regular Lenovo dialer can then be used.  So it's not a hardware problem, and there's a solution.  ...JZ

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  • Network Manager fails to connect with Sierra Wireless 3G/4G modem

    Hi,
    I have three Asus Laptops running with Arch (Asus N56VZ, Asus F3JC, Asus UL80VS). All laptops work with Cinnamon Desktop. Everything works fine except 3G Modem in Network Manager. I have two USB modems: Sierra Wireless AirCard 310U and Sierra Wireless AirCard 320U.
    Modems had worked fine in end of year 2012, when NetworkManager version was 0.9.6.4 and ModemManager 0.6.0.0. After update (NM >0.8.X.X, MM >0.7.X. - when the ModemManager.service appeared) until now, I can't connect to the internet on all Asus laptops. Since 2013 I have to use wvdial, because in wvdial modems works fine. It is Arch problem, because in Linux Mint 15 I can connect with NetworkManager.
    Sierra AirCard 310U - When I'm connecting to the internet, modem reboots itself.
    Sierra AirCard 320U - When I'm connecting to the internet, Network Manager can't obtain DHCP address.
    I would be grateful for any help.
    Sierra Wireless AirCard 310U (USB 3G Modem) log:
    aug 22 13:41:35 AsusN56VZ NetworkManager[309]: <info> Activation (ttyUSB2) starting connection 'Orange PL'
    aug 22 13:41:35 AsusN56VZ NetworkManager[309]: <info> (ttyUSB2): device state change: disconnected -> prepare (reason 'none') [30 40 0]
    aug 22 13:41:35 AsusN56VZ NetworkManager[309]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) scheduled...
    aug 22 13:41:35 AsusN56VZ NetworkManager[309]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) started...
    aug 22 13:41:35 AsusN56VZ NetworkManager[309]: <info> Activation (ttyUSB2) Stage 1 of 5 (Device Prepare) complete.
    aug 22 13:41:35 AsusN56VZ ModemManager[308]: <info> Simple connect started...
    aug 22 13:41:35 AsusN56VZ ModemManager[308]: <info> Simple connect state (3/8): Enable
    aug 22 13:41:35 AsusN56VZ ModemManager[308]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (disabled -> enabling)
    aug 22 13:41:35 AsusN56VZ NetworkManager[309]: <info> (ttyUSB2) modem state changed, 'disabled' --> 'enabling' (reason: user-requested)
    aug 22 13:41:35 AsusN56VZ ModemManager[308]: <warn> (ttyUSB2): port attributes not fully set
    aug 22 13:41:38 AsusN56VZ ModemManager[308]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (unknown -> registering)
    aug 22 13:41:38 AsusN56VZ ModemManager[308]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (registering -> home)
    aug 22 13:41:38 AsusN56VZ ModemManager[308]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP location updated (MCC: '0', MNC: '0', Location area code: '4FB9', Cell ID: '9C65539')
    aug 22 13:41:39 AsusN56VZ ModemManager[308]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP location updated (MCC: '260', MNC: '3', Location area code: '4FB9', Cell ID: '9C65539')
    aug 22 13:41:40 AsusN56VZ kernel: usb 3-2: USB disconnect, device number 3
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB1: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB1: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB1: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ ModemManager[308]: mm_serial_port_close: assertion `priv->open_count > 0' failed
    aug 22 13:41:40 AsusN56VZ ModemManager[308]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (enabling -> registered)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ ModemManager[308]: <info> Simple connect state (4/8): Wait to get fully enabled
    aug 22 13:41:40 AsusN56VZ ModemManager[308]: <info> Simple connect state (5/8): Register
    aug 22 13:41:40 AsusN56VZ ModemManager[308]: <info> (tty/ttyUSB2): released by modem /sys/devices/pci0000:00/0000:00:14.0/usb3/3-2
    aug 22 13:41:40 AsusN56VZ ModemManager[308]: <info> Simple connect state (6/8): Bearer
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB1: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
    aug 22 13:41:40 AsusN56VZ kernel: sierra 3-2:1.0: device disconnected
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: resubmit read urb failed.(-19)
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB1: Sierra USB modem converter now disconnected from ttyUSB1
    aug 22 13:41:40 AsusN56VZ kernel: sierra 3-2:1.1: device disconnected
    aug 22 13:41:40 AsusN56VZ kernel: sierra ttyUSB2: Sierra USB modem converter now disconnected from ttyUSB2
    aug 22 13:41:40 AsusN56VZ kernel: sierra 3-2:1.3: device disconnected
    aug 22 13:41:40 AsusN56VZ kernel: sierra_net 3-2:1.7 wwp0s20u2i7: unregister 'sierra_net' usb-0000:00:14.0-2, Sierra Wireless USB-to-WWAN Modem
    aug 22 13:41:40 AsusN56VZ kernel: ModemManager[308]: segfault at 28 ip 0000000000433350 sp 00007ffff409e088 error 4 in ModemManager[400000+e0000]
    aug 22 13:41:40 AsusN56VZ systemd[1]: ModemManager.service: main process exited, code=dumped, status=11/SEGV
    aug 22 13:41:40 AsusN56VZ systemd[1]: Unit ModemManager.service entered failed state.
    aug 22 13:41:40 AsusN56VZ NetworkManager[309]: <info> ModemManager disappeared from bus
    aug 22 13:41:40 AsusN56VZ NetworkManager[309]: <info> (ttyUSB2): device state change: prepare -> unmanaged (reason 'removed') [40 10 36]
    aug 22 13:41:40 AsusN56VZ NetworkManager[309]: <info> (ttyUSB2): deactivating device (reason 'removed') [36]
    aug 22 13:41:40 AsusN56VZ laptop-mode[2414]: Laptop mode
    aug 22 13:41:40 AsusN56VZ NetworkManager[309]: <info> (ttyUSB2): cleaning up...
    aug 22 13:41:40 AsusN56VZ NetworkManager[309]: <info> (ttyUSB2): taking down device.
    aug 22 13:41:40 AsusN56VZ laptop-mode[2415]: enabled, not active
    aug 22 13:41:40 AsusN56VZ systemd-coredump[2336]: Process 308 (ModemManager) dumped core.
    aug 22 13:41:40 AsusN56VZ systemd[1]: Starting Modem Manager...
    aug 22 13:41:40 AsusN56VZ systemd[1]: ModemManager.service holdoff time over, scheduling restart.
    aug 22 13:41:40 AsusN56VZ systemd[1]: Stopping Modem Manager...
    aug 22 13:41:40 AsusN56VZ systemd[1]: Starting Modem Manager...
    aug 22 13:41:43 AsusN56VZ kernel: sierra_net 3-2:1.7 (unregistered net_device): usb_control_msg failed, status -19
    Sierra Wireless AirCard 320U (3G/4G Modem) log:
    aug 22 13:48:02 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) starting connection 'Orange PL'
    aug 22 13:48:02 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3): device state change: disconnected -> prepare (reason 'none') [30 40 0]
    aug 22 13:48:02 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 1 of 5 (Device Prepare) scheduled...
    aug 22 13:48:02 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 1 of 5 (Device Prepare) started...
    aug 22 13:48:02 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 1 of 5 (Device Prepare) complete.
    aug 22 13:48:02 AsusN56VZ ModemManager[314]: <info> Simple connect started...
    aug 22 13:48:02 AsusN56VZ ModemManager[314]: <info> Simple connect state (3/8): Enable
    aug 22 13:48:02 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: state changed (disabled -> enabling)
    aug 22 13:48:02 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3) modem state changed, 'disabled' --> 'enabling' (reason: user-requested)
    aug 22 13:48:02 AsusN56VZ ModemManager[314]: <warn> (ttyUSB3): port attributes not fully set
    aug 22 13:48:02 AsusN56VZ ModemManager[314]: <warn> (ttyUSB4): port attributes not fully set
    aug 22 13:48:05 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: 3GPP Registration state changed (unknown -> registering)
    aug 22 13:48:05 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: 3GPP Registration state changed (registering -> home)
    aug 22 13:48:05 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: 3GPP location updated (MCC: '0', MNC: '0', Location area code: '4FB9', Cell ID: '9C65539')
    aug 22 13:48:05 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: 3GPP location updated (MCC: '260', MNC: '3', Location area code: '4FB9', Cell ID: '9C65539')
    aug 22 13:48:06 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: state changed (enabling -> registered)
    aug 22 13:48:06 AsusN56VZ ModemManager[314]: <info> Simple connect state (4/8): Wait to get fully enabled
    aug 22 13:48:06 AsusN56VZ ModemManager[314]: <info> Simple connect state (5/8): Register
    aug 22 13:48:06 AsusN56VZ ModemManager[314]: <info> Simple connect state (6/8): Bearer
    aug 22 13:48:06 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3) modem state changed, 'enabling' --> 'registered' (reason: user-requested)
    aug 22 13:48:06 AsusN56VZ NetworkManager[315]: <info> WWAN now enabled by management service
    aug 22 13:48:06 AsusN56VZ ModemManager[314]: <info> Simple connect state (7/8): Connect
    aug 22 13:48:06 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: state changed (registered -> connecting)
    aug 22 13:48:06 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3) modem state changed, 'registered' --> 'connecting' (reason: user-requested)
    aug 22 13:48:06 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: signal quality updated (40)
    aug 22 13:48:06 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: access technology changed (unknown -> hsdpa, hsupa)
    aug 22 13:48:09 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: state changed (connecting -> connected)
    aug 22 13:48:09 AsusN56VZ ModemManager[314]: <info> Simple connect state (8/8): All done
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3) modem state changed, 'connecting' --> 'connected' (reason: user-requested)
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 2 of 5 (Device Configure) scheduled...
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 2 of 5 (Device Configure) starting...
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3): device state change: prepare -> config (reason 'none') [40 50 0]
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3): bringing up device.
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 2 of 5 (Device Configure) successful.
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 3 of 5 (IP Configure Start) scheduled.
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 2 of 5 (Device Configure) complete.
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 3 of 5 (IP Configure Start) started...
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3): device state change: config -> ip-config (reason 'none') [50 70 0]
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (wwp0s20u2i7) Beginning DHCPv4 transaction (timeout in 45 seconds)
    aug 22 13:48:09 AsusN56VZ kernel: IPv6: ADDRCONF(NETDEV_UP): wwp0s20u2i7: link is not ready
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> dhclient started with pid 2351
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 3 of 5 (IP Configure Start) complete.
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 4 of 5 (IPv6 Configure Timeout) started...
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 4 of 5 (IPv6 Configure Timeout) complete.
    aug 22 13:48:09 AsusN56VZ dhclient[2351]: Internet Systems Consortium DHCP Client 4.2.5-P1
    aug 22 13:48:09 AsusN56VZ dhclient[2351]: Copyright 2004-2013 Internet Systems Consortium.
    aug 22 13:48:09 AsusN56VZ dhclient[2351]: All rights reserved.
    aug 22 13:48:09 AsusN56VZ dhclient[2351]: For info, please visit https://www.isc.org/software/dhcp/
    aug 22 13:48:09 AsusN56VZ dhclient[2351]:
    aug 22 13:48:09 AsusN56VZ NetworkManager[315]: <info> (wwp0s20u2i7): DHCPv4 state changed nbi -> preinit
    aug 22 13:48:09 AsusN56VZ dhclient[2351]: Listening on LPF/wwp0s20u2i7/8e:1d:fe:e0:02:07
    aug 22 13:48:09 AsusN56VZ dhclient[2351]: Sending on LPF/wwp0s20u2i7/8e:1d:fe:e0:02:07
    aug 22 13:48:09 AsusN56VZ dhclient[2351]: Sending on Socket/fallback
    aug 22 13:48:09 AsusN56VZ dhclient[2351]: DHCPDISCOVER on wwp0s20u2i7 to 255.255.255.255 port 67 interval 5
    aug 22 13:48:14 AsusN56VZ dhclient[2351]: DHCPDISCOVER on wwp0s20u2i7 to 255.255.255.255 port 67 interval 5
    aug 22 13:48:19 AsusN56VZ dhclient[2351]: DHCPDISCOVER on wwp0s20u2i7 to 255.255.255.255 port 67 interval 7
    aug 22 13:48:26 AsusN56VZ dhclient[2351]: DHCPDISCOVER on wwp0s20u2i7 to 255.255.255.255 port 67 interval 7
    aug 22 13:48:33 AsusN56VZ dhclient[2351]: DHCPDISCOVER on wwp0s20u2i7 to 255.255.255.255 port 67 interval 7
    aug 22 13:48:36 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: signal quality updated (40)
    aug 22 13:48:40 AsusN56VZ dhclient[2351]: DHCPDISCOVER on wwp0s20u2i7 to 255.255.255.255 port 67 interval 10
    aug 22 13:48:50 AsusN56VZ dhclient[2351]: DHCPDISCOVER on wwp0s20u2i7 to 255.255.255.255 port 67 interval 17
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <warn> (wwp0s20u2i7): DHCPv4 request timed out.
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <info> (wwp0s20u2i7): canceled DHCP transaction, DHCP client pid 2351
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 4 of 5 (IPv4 Configure Timeout) started...
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <warn> Activation (ttyUSB3) failed for connection 'Orange PL'
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <info> Activation (ttyUSB3) Stage 4 of 5 (IPv4 Configure Timeout) complete.
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3): device state change: failed -> disconnected (reason 'none') [120 30 0]
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3): deactivating device (reason 'none') [0]
    aug 22 13:48:54 AsusN56VZ ModemManager[314]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: state changed (connected -> disconnecting)
    aug 22 13:48:54 AsusN56VZ NetworkManager[315]: <info> (ttyUSB3) modem state changed, 'connected' --> 'disconnecting' (reason: user-requested)
    Last edited by Shocker (2013-09-14 20:08:08)

    Shocker wrote:I don't think it's kernel problem, because Linux Mint 15 have kernel 3.8 and there is everything fine. Maybe systemd (Fedora & Arch have systemd, but Mint sysvinit..), maybe version of dhcpcd, I have no idea...
    To test, I downgraded my kernel
    ~ ᐅ uname -r
    3.9.5-301.fc19.x86_64.debug
    And now I see in messages
    Sep 15 09:46:17 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) starting connection 'Telstra'
    Sep 15 09:46:17 localhost NetworkManager[724]: <info> (wwp0s29u1u1i7): device state change: disconnected -> prepare (reason 'none') [30 40 0]
    Sep 15 09:46:17 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 1 of 5 (Device Prepare) scheduled...
    Sep 15 09:46:17 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 1 of 5 (Device Prepare) started...
    Sep 15 09:46:17 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 1 of 5 (Device Prepare) complete.
    Sep 15 09:46:17 localhost modem-manager[757]: <info> (ttyUSB2) opening serial port...
    Sep 15 09:46:17 localhost modem-manager[757]: <warn> (ttyUSB2): port attributes not fully set
    Sep 15 09:46:17 localhost modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (disabled -> enabling)
    Sep 15 09:46:17 localhost dbus-daemon[618]: modem-manager[757]: <info> (ttyUSB2) opening serial port...
    Sep 15 09:46:17 localhost dbus-daemon[618]: modem-manager[757]: <warn> (ttyUSB2): port attributes not fully set
    Sep 15 09:46:17 localhost dbus-daemon[618]: modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (disabled -> enabling)
    Sep 15 09:46:18 localhost dbus-daemon[618]: modem-manager[757]: <info> (ttyUSB2): using PDU mode for SMS
    Sep 15 09:46:18 localhost modem-manager[757]: <info> (ttyUSB2): using PDU mode for SMS
    Sep 15 09:46:18 localhost dbus-daemon[618]: modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (enabling -> enabled)
    Sep 15 09:46:18 localhost modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (enabling -> enabled)
    Sep 15 09:46:18 localhost NetworkManager[724]: <info> WWAN now enabled by management service
    Sep 15 09:46:19 localhost dbus-daemon[618]: modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (enabled -> registered)
    Sep 15 09:46:19 localhost modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (enabled -> registered)
    Sep 15 09:46:19 localhost dbus-daemon[618]: modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (registered -> connecting)
    Sep 15 09:46:19 localhost modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (registered -> connecting)
    Sep 15 09:46:19 localhost dbus-daemon[618]: modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (connecting -> connected)
    Sep 15 09:46:19 localhost modem-manager[757]: <info> Modem /org/freedesktop/ModemManager/Modems/1: state changed (connecting -> connected)
    Sep 15 09:46:19 localhost kernel: [ 5056.773068] IPv6: ADDRCONF(NETDEV_UP): wwp0s29u1u1i7: link is not ready
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 2 of 5 (Device Configure) scheduled...
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 2 of 5 (Device Configure) starting...
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> (wwp0s29u1u1i7): device state change: prepare -> config (reason 'none') [40 50 0]
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> (wwp0s29u1u1i7): bringing up device.
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 2 of 5 (Device Configure) successful.
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 2 of 5 (Device Configure) complete.
    Sep 15 09:46:19 localhost avahi-daemon[607]: Registering new address record for fe80::c0c3:a2ff:fe4a:207 on wwp0s29u1u1i7.*.
    Sep 15 09:46:19 localhost kernel: [ 5056.876750] IPv6: ADDRCONF(NETDEV_CHANGE): wwp0s29u1u1i7: link becomes ready
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 3 of 5 (IP Configure Start) scheduled.
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 3 of 5 (IP Configure Start) started...
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> (wwp0s29u1u1i7): device state change: config -> ip-config (reason 'none') [50 70 0]
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Beginning DHCPv4 transaction (timeout in 45 seconds)
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> dhclient started with pid 10376
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 3 of 5 (IP Configure Start) complete.
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 4 of 5 (IPv6 Configure Timeout) started...
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 4 of 5 (IPv6 Configure Timeout) complete.
    Sep 15 09:46:19 localhost dhclient[10376]: Internet Systems Consortium DHCP Client 4.2.5
    Sep 15 09:46:19 localhost dhclient[10376]: Copyright 2004-2013 Internet Systems Consortium.
    Sep 15 09:46:19 localhost dhclient[10376]: All rights reserved.
    Sep 15 09:46:19 localhost dhclient[10376]: For info, please visit https://www.isc.org/software/dhcp/
    Sep 15 09:46:19 localhost dhclient[10376]:
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> (wwp0s29u1u1i7): DHCPv4 state changed nbi -> preinit
    Sep 15 09:46:19 localhost dhclient[10376]: Listening on LPF/wwp0s29u1u1i7/c2:c3:a2:4a:02:07
    Sep 15 09:46:19 localhost dhclient[10376]: Sending on LPF/wwp0s29u1u1i7/c2:c3:a2:4a:02:07
    Sep 15 09:46:19 localhost dhclient[10376]: Sending on Socket/fallback
    Sep 15 09:46:19 localhost dhclient[10376]: DHCPREQUEST on wwp0s29u1u1i7 to 255.255.255.255 port 67 (xid=0x6e8c90b2)
    Sep 15 09:46:19 localhost dhclient[10376]: DHCPNAK from 10.102.67.253 (xid=0x6e8c90b2)
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> (wwp0s29u1u1i7): DHCPv4 state changed preinit -> expire
    Sep 15 09:46:19 localhost dhclient[10376]: DHCPDISCOVER on wwp0s29u1u1i7 to 255.255.255.255 port 67 interval 6 (xid=0xae2cec8)
    Sep 15 09:46:19 localhost dhclient[10376]: DHCPREQUEST on wwp0s29u1u1i7 to 255.255.255.255 port 67 (xid=0xae2cec8)
    Sep 15 09:46:19 localhost dhclient[10376]: DHCPOFFER from 10.102.67.253
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    Sep 15 09:46:19 localhost dhclient[10376]: DHCPACK from 10.102.67.253 (xid=0xae2cec8)
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    Sep 15 09:46:19 localhost NetworkManager[724]: <info> prefix 24 (255.255.255.0)
    Sep 15 09:46:19 localhost NetworkManager[724]: <info> gateway 10.102.67.12
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    Sep 15 09:46:19 localhost NetworkManager[724]: <info> Activation (wwp0s29u1u1i7) Stage 5 of 5 (IPv4 Commit) started...
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    Sep 15 09:46:19 localhost avahi-daemon[607]: New relevant interface wwp0s29u1u1i7.IPv4 for mDNS.
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    Last edited by qnm (2013-09-14 23:48:05)

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    This was posted as a reply to german forum but it was deleted Symptoms (mobile connection is connected)
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    More details. I installed USB Device Viewer from Windows Driver Kit to get some information. When the EM7435 device is healthy: [Port3] : USB Composite Device
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    Is Port Debug Capable: no
    Companion Port Number: 0
    Companion Hub Symbolic Link Name:
    Protocols Supported:
    USB 1.1: yes
    USB 2.0: yes
    USB 3.0: no
    Device Power State: PowerDeviceD2
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    ConnectionStatus:
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    Device Address: 0x05
    Open Pipes: 6
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    bDescriptorType: 0x01
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    bDeviceClass: 0xEF -> This is a Multi-interface Function Code Device
    bDeviceSubClass: 0x02 -> This is the Common Class Sub Class
    bDeviceProtocol: 0x01 -> This is the Interface Association Descriptor protocol
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    idProduct: 0xA001
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    Is Port User Connectable: no
    Is Port Debug Capable: no
    Companion Port Number: 0
    Companion Hub Symbolic Link Name:
    Protocols Supported:
    USB 1.1: yes
    USB 2.0: yes
    USB 3.0: no
    ---===>Device Information<===---
    String Descriptor for index 2 not available while device is in low power state.
    ConnectionStatus:
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    Device Address: 0x02
    Open Pipes: 0
    *!*ERROR: No open pipes!
    ===>Device Descriptor<===
    bLength: 0x12
    bDescriptorType: 0x01
    bcdUSB: 0x0200
    bDeviceClass: 0x02 -> This is a Communication Device
    bDeviceSubClass: 0x00
    bDeviceProtocol: 0x00
    bMaxPacketSize0: 0x40 = (64) Bytes
    idVendor: 0x1519 = Comneon GmbH Co., Ohg.
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    Your provider may have their own WWAN software (in the case of Vodafone it is Mobile Connect, for AT&T it is Communication Manager, etc. Vodafone even have a Lenovo-specific version of their Mobile Connect).
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    Are youusing  the a wired broadband router like cable or dsl at the same time using the mobile broadband card? If so, only one service can be used at a time. If the mobile broadband card is enabled, then the wired connection coming from the cable or dsl modem is automatically disabled.

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    I get similar problems with the Ericsson C5621 wireless card.
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    Hi @emma22 
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    Please click the Thumbs up icon below to thank me for responding.
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
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    Hello,
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    Message was edited by: lethal

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