System: Linux X200 2.6.32-22-generic #33-Ubuntu SMP x86_64 GNU/Linux Package: modemmanager Package-Version: 0.3-0ubuntu2 When I try to connect to my WWAN service provider (with a "Ericsson F3507g Mobile Broadband Module" in a "Lenovo X200" Laptop), I get the following error messages (/var/log/syslog): May 19 16:13:35 X200 NetworkManager: Activation (usb0) starting connection 'A1/Telekom Austria A1 Breitband' May 19 16:13:35 X200 NetworkManager: (usb0): device state change: 3 -> 4 (reason 0) May 19 16:13:35 X200 NetworkManager: Activation (usb0) Stage 1 of 5 (Device Prepare) scheduled... May 19 16:13:35 X200 NetworkManager: Activation (usb0) Stage 1 of 5 (Device Prepare) started... May 19 16:13:35 X200 NetworkManager: Activation (usb0) Stage 1 of 5 (Device Prepare) complete. May 19 16:13:35 X200 modem-manager: (ttyACM0) opening serial device... May 19 16:13:35 X200 modem-manager: Modem /org/freedesktop/ModemManager/Modems/1: state changed (disabled -> enabling) May 19 16:13:35 X200 modem-manager: Got failure code 100: Unknown error May 19 16:13:35 X200 modem-manager: Invalid error code May 19 16:13:35 X200 modem-manager: Got failure code 100: Unknown error May 19 16:13:35 X200 modem-manager: Modem /org/freedesktop/ModemManager/Modems/1: state changed (enabling -> enabled) May 19 16:13:36 X200 modem-manager: Registration state changed: 4 May 19 16:13:41 X200 modem-manager: Registration state changed: 1 May 19 16:13:41 X200 modem-manager: Modem /org/freedesktop/ModemManager/Modems/1: state changed (enabled -> registered) May 19 16:13:42 X200 modem-manager: Modem /org/freedesktop/ModemManager/Modems/1: state changed (registered -> connecting) May 19 16:13:44 X200 modem-manager: mbm_e2nap_received, disconnected May 19 16:14:34 X200 modem-manager: Modem /org/freedesktop/ModemManager/Modems/1: state changed (connecting -> registered) May 19 16:14:34 X200 NetworkManager: stage1_prepare_done(): GSM modem connection failed: (32) Busy May 19 16:14:34 X200 NetworkManager: (usb0): device state change: 4 -> 9 (reason 1) May 19 16:14:34 X200 NetworkManager: Marking connection 'A1/Telekom Austria A1 Breitband' invalid. May 19 16:14:34 X200 NetworkManager: Activation (usb0) failed. May 19 16:14:34 X200 NetworkManager: (usb0): device state change: 9 -> 3 (reason 0) May 19 16:14:34 X200 NetworkManager: (usb0): deactivating device (reason: 0). May 19 16:14:34 X200 NetworkManager: Policy set 'X200 LAN' (eth0) as default for routing and DNS. Somebody in an Austrian forum wrote, that modemmamnager connects to the wrong device ("ttyACM0" instead of "ttyACM1").: https://forum.ubook.at/index.php?page=Thread&threadID=1127 How could I tell the modemmanager to choose the right device?

Ubuntumodemmanager package

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modemmanager package