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My Dell Inspiron 1501 wont connect to any network (wireless or wired)

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http://askubuntu.com – I just recently installed Ubuntu 12.04, replacing windows vista on my Inspiron and it wont connect to the internet by any means. It won't detect any wireless networks and when I try the ethernet cord, I can see "wired connection 1" in the network manager but the symbol on the panel is a wireless signal with 0 bars. Furthermore when I open firefox, it says there isn't a connection. What should I do? (HowTos)

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Submitted by missing on 08/22/2012

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