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i cannot connect to internet using my Vodafone Mobile Broadband in Ubuntu 12.04. it says Registered on home network, but it fails to connect.

This is what I got after doing dmesg.

 om ttyUSB0
[   78.220057] option 2-1.4:1.0: device disconnected
[   78.220139] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[   78.220151] option 2-1.4:1.2: device disconnected
[   80.034347] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[   80.034361] option 2-1.4:1.3: device disconnected
[   80.105712] usb 2-1.4: reset high-speed USB device number 3 using ehci-pci
[   80.200669] option 2-1.4:1.3: GSM modem (1-port) converter detected
[   80.200819] usb 2-1.4: GSM modem (1-port) converter now attached to ttyUSB0
[   80.200867] option 2-1.4:1.2: GSM modem (1-port) converter detected
[   80.200935] usb 2-1.4: GSM modem (1-port) converter now attached to ttyUSB1
[   80.200964] option 2-1.4:1.0: GSM modem (1-port) converter detected
[   80.201587] usb 2-1.4: GSM modem (1-port) converter now attached to ttyUSB2
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We need more details about your hardware. Do you get error messages? –  guntbert Apr 2 at 15:45
there's no error messages, it just disconnects after attempting to connect. I'm using Vodafone Mobile Broadband K3770 and Ubuntu 12.04 32-bit OS. Im using double OS, Windows 7 and ubuntu. –  JovelS2000 Apr 2 at 16:31
There should be error messages, please type dmesg when you try to connect. –  Braiam Apr 3 at 0:56
@Braiam I added the error log to the post. –  JovelS2000 Apr 4 at 4:03

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