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[Chamila Mihiripenna <chamila.mihiripenna@xxxxxxxxx>]

Tried girts (girtsz-gmail) 's fix in 40-usb_modeswitch.rules . Not
working ... Issue still exists.

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https://bugs.launchpad.net/bugs/868034

Title:
  Huawei E220 can't connect on Ubuntu 11.10

Status in “network-manager” package in Ubuntu:
  Incomplete

Bug description:
  I'm using Ubuntu in my HP Pavilion dv6745tx laptop. I cannot connect
  the Huawei E220 usb modem since 11.10 beta1 (now I'm in beta2). There
  is  no problem in natty.

  I have found this in syslog

  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> Activation (ttyUSB0) starting connection 'Dialog GSM Postpaid'
  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> (ttyUSB0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) scheduled...
  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) started...
  Oct  5 07:10:51 ubuntu NetworkManager[1681]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) complete.
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <warn> GSM connection failed: (32) Sending command failed: 'Resource temporarily unavailable'
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <info> (ttyUSB0): device state change: prepare -> failed (reason 'unknown') [40 120 1]
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <warn> Activation (ttyUSB0) failed.
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <info> (ttyUSB0): device state change: failed -> disconnected (reason 'none') [120 30 0]
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: <info> (ttyUSB0): deactivating device (reason: 0).
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: nm_system_iface_flush_routes: assertion `ifindex > 0' failed
  Oct  5 07:10:58 ubuntu NetworkManager[1681]: nm_system_iface_flush_addresses: assertion `ifindex > 0' failed

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