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[ubuntu] EeePC upgrade try to 12.04 - no network

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linux-howto

http://ubuntuforums.org – I upgraded my EeePC from 11.04 to 11.10 and further to 12.04 I used the Ethernet cable to connect to the Internet. Now at 12.04 I do not have a network anymore! sudo start networking => networking stop/waiting sudo /etc/init.d/networking restart * Reconfiguring network interfaces... Cannot find device "wwan0" dmesg shows me many lines similar to: cfg80211: Updating information on frequency 2408 MHz for a 20 MHz width channel with regulatory rule: cfg80211: 2474000 KHz - 2494000 KHz @ 20000 kHz), (300 mBi, 2000 mBm .... rt2800pci 0000:01:00.0: PCI INT A disabled (Hardware)