Ubuntu 12.10 Modem Connected but no internet
I was previously running ubuntu 12.04 and upgraded to ubuntu 12.10. Previously on 12.04 when I removed my wired ethernet connection and plugged in my 3G modem I was immediately able to browse the internet. However now on 12.10 I am unable to do so, even though the modem shows that it is connected when I go to Firefox or Chrome it displays an error. In order for my 3G to work I need to restart my machine (without the ethernet cable plugged in) and then plug in the 3G modem. It then works.
Please help or advise what I can do.
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