Upgraded to the latest nightly build of Network Manager from PPA: http://ppa.launchpad.net/network-manager/trunk/ubuntu The rotating spikes don't freeze, and continue to rotate. However, no connection is established. After a minute or so, 'Network Disconnected' appears. Here is the daemon.log: Feb 1 17:12:47 grn-ubuntu modem-manager: (Huawei): (ttyUSB1) deferring support check Feb 1 17:12:47 grn-ubuntu modem-manager: (Huawei): (ttyUSB2) deferring support check Feb 1 17:12:47 grn-ubuntu modem-manager: (ttyUSB0) opening serial device... Feb 1 17:12:47 grn-ubuntu modem-manager: (ttyUSB0): probe requested by plugin 'Huawei' Feb 1 17:12:50 grn-ubuntu modem-manager: (ttyUSB1): re-checking support... Feb 1 17:12:50 grn-ubuntu modem-manager: (Huawei): (ttyUSB1) deferring support check Feb 1 17:12:50 grn-ubuntu modem-manager: (ttyUSB2): re-checking support... Feb 1 17:12:50 grn-ubuntu modem-manager: (Huawei): (ttyUSB2) deferring support check Feb 1 17:12:52 grn-ubuntu modem-manager: (ttyUSB0) closing serial device... Feb 1 17:12:52 grn-ubuntu modem-manager: (Huawei): CDMA modem /sys/devices/pci0000:00/0000:00:02.0/usb3/3-2 claimed port ttyUSB0 Feb 1 17:12:52 grn-ubuntu modem-manager: Added modem /sys/devices/pci0000:00/0000:00:02.0/usb3/3-2 Feb 1 17:12:52 grn-ubuntu modem-manager: Exported modem /sys/devices/pci0000:00/0000:00:02.0/usb3/3-2 as /org/freedesktop/ModemManager/Modems/7 Feb 1 17:12:53 grn-ubuntu NetworkManager: (ttyUSB0): new CDMA device (driver: 'option1') Feb 1 17:12:53 grn-ubuntu NetworkManager: (ttyUSB0): exported as /org/freedesktop/NetworkManager/Devices/9 Feb 1 17:12:53 grn-ubuntu NetworkManager: (ttyUSB0): now managed Feb 1 17:12:53 grn-ubuntu NetworkManager: (ttyUSB0): device state change: 1 -> 2 (reason 2) Feb 1 17:12:53 grn-ubuntu NetworkManager: (ttyUSB0): deactivating device (reason: 2). Feb 1 17:12:53 grn-ubuntu NetworkManager: (ttyUSB0): device state change: 2 -> 3 (reason 0) Feb 1 17:12:53 grn-ubuntu modem-manager: (ttyUSB1): re-checking support... Feb 1 17:12:53 grn-ubuntu modem-manager: (ttyUSB1) opening serial device... Feb 1 17:12:53 grn-ubuntu modem-manager: (ttyUSB1): probe requested by plugin 'Huawei' Feb 1 17:12:53 grn-ubuntu modem-manager: (ttyUSB2): re-checking support... Feb 1 17:12:53 grn-ubuntu modem-manager: (ttyUSB2) opening serial device... Feb 1 17:12:53 grn-ubuntu modem-manager: (ttyUSB2): probe requested by plugin 'Huawei' Feb 1 17:12:55 grn-ubuntu modem-manager: (ttyUSB2) closing serial device... Feb 1 17:12:55 grn-ubuntu modem-manager: (Huawei): CDMA modem /sys/devices/pci0000:00/0000:00:02.0/usb3/3-2 claimed port ttyUSB2 Feb 1 17:13:06 grn-ubuntu modem-manager: (ttyUSB1) closing serial device... Feb 1 17:13:38 grn-ubuntu NetworkManager: Activation (ttyUSB0) starting connection 'Reliance Netconnect' Feb 1 17:13:38 grn-ubuntu NetworkManager: (ttyUSB0): device state change: 3 -> 4 (reason 0) Feb 1 17:13:38 grn-ubuntu NetworkManager: Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) scheduled... Feb 1 17:13:38 grn-ubuntu NetworkManager: Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) started... Feb 1 17:13:38 grn-ubuntu NetworkManager: Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) complete. Feb 1 17:13:38 grn-ubuntu modem-manager: (ttyUSB0) opening serial device... Feb 1 17:13:38 grn-ubuntu modem-manager: Modem /org/freedesktop/ModemManager/Modems/7: state changed (disabled -> enabling) Feb 1 17:13:39 grn-ubuntu modem-manager: (ttyUSB2) opening serial device... Feb 1 17:13:39 grn-ubuntu modem-manager: Modem /org/freedesktop/ModemManager/Modems/7: state changed (enabling -> enabled) Feb 1 17:13:39 grn-ubuntu ntpd[1482]: Deleting interface #7 ppp0, 115.240.38.78#123, interface stats: received=0, sent=0, dropped=0, active_time=6300 secs Feb 1 17:14:39 grn-ubuntu NetworkManager: stage1_prepare_done(): CDMA modem connection failed: (32) No service Feb 1 17:14:39 grn-ubuntu NetworkManager: (ttyUSB0): device state change: 4 -> 9 (reason 0) Feb 1 17:14:39 grn-ubuntu NetworkManager: Marking connection 'Reliance Netconnect' invalid. Feb 1 17:14:39 grn-ubuntu NetworkManager: Activation (ttyUSB0) failed. Feb 1 17:14:39 grn-ubuntu NetworkManager: (ttyUSB0): device state change: 9 -> 3 (reason 0) Feb 1 17:14:39 grn-ubuntu NetworkManager: (ttyUSB0): deactivating device (reason: 0).