[clug] Mobile Broadband

[Brett Worth]

On 03/13/2010 09:48 PM, Adam Baxter wrote:
> NetworkManager uses modem-manager for 3G connections. It logs to
> syslog, is there anything in there about the failed connection?

I get a few of lines in /var/log/messages:

Mar 14 08:59:07 dart modem-manager: (ttyACM0) closing serial device...
Mar 14 08:59:15 dart modem-manager: (ttyACM0) opening serial device...
Mar 14 09:00:18 dart modem-manager: Got failure code 3: No carrier

And then these lines in /var/log/NetworkManager:

Mar 14 08:59:15 dart NetworkManager: <info>  Activation (ttyACM0) starting connection 'GSM
connection 1'
Mar 14 08:59:15 dart NetworkManager: <info>  (ttyACM0): device state change: 3 -> 4 (reason 0)
Mar 14 08:59:15 dart NetworkManager: <info>  Activation (ttyACM0) Stage 1 of 5 (Device
Prepare) scheduled...
Mar 14 08:59:15 dart NetworkManager: <info>  Activation (ttyACM0) Stage 1 of 5 (Device
Prepare) started...
Mar 14 08:59:15 dart NetworkManager: <info>  Activation (ttyACM0) Stage 1 of 5 (Device
Prepare) complete.
Mar 14 09:00:18 dart NetworkManager: <WARN>  stage1_prepare_done(): GSM modem connection
failed: Serial command timed out
Mar 14 09:00:18 dart NetworkManager: <info>  (ttyACM0): device state change: 4 -> 9 (reason 1)
Mar 14 09:00:18 dart NetworkManager: <info>  Marking connection 'GSM connection 1' invalid.
Mar 14 09:00:18 dart NetworkManager: <info>  Activation (ttyACM0) failed.
Mar 14 09:00:18 dart NetworkManager: <info>  (ttyACM0): device state change: 9 -> 3 (reason 0)
Mar 14 09:00:18 dart NetworkManager: <info>  (ttyACM0): deactivating device (reason: 0).
Mar 14 09:00:18 dart NetworkManager: nm_system_device_flush_ip4_routes_with_iface:
assertion `iface_idx >= 0' failed
Mar 14 09:00:18 dart NetworkManager: nm_system_device_flush_ip4_addresses_with_iface:
assertion `iface_idx >= 0' failed


Which doesn't mean much to me except for the timeout which coincides with the "no carrier"
above.

lsusb calls the phone: Bus 005 Device 002: ID 0421:002f Nokia Mobile Phones

And given that the network manager recognises this as a mobile broadband device then I
think the usb_modeswitch as mentioned in various blogs is not needed.

I'm using *99# as the number.  Could that be wrong?

Brett