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I upgraded my Ubuntu OS from an ISO. Initially, my connection kept on dropping. After a while, ubuntu failed to connect to wireless at all.

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1 Answer 1

Reinstall drivers.

sudo apt-get install --reinstall linux-headers-generic linux-headers-$(uname -r) build-essential dkms patch fakeroot bcmwl-kernel-source

Reference: http://ubuntuforums.org/showpost.php?p=11410285&postcount=36

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