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I have 12.04 LTS on a Toshiba Portege R835-P56X.

I try to connect to my home network over wifi. It connects, but I can't access the Internet. I tried resetting the router, but that didn't work. Please help!

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Does it work on a different OS, or with a Live CD/DVD? –  belacq Jun 8 '13 at 23:51
    
Open a terminal by Ctrl+Alt+T, and type these separately: lspci -nn | grep 0280, ifconfig and route -n. Copy their outputs, edit your question, and paste the outputs in your question. –  Alaa Ali Jun 9 '13 at 7:05

1 Answer 1

Check if the wifi card is blocked (Terminal)

rfkill list wlan (for wifi)

OR

rfkill list all (for wifi and bluetooth)

UNBLOCK:

rfkill unblock wlan (for wifi)

OR

rfkill unblock all (for wifi and bluetooth)

Restart the network:

sudo service network-manager restart

Also see:

http://www.iasptk.com/19593-ubuntu-1204-wifi-not-working-at-laptop-or-notebook-unblock-it

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These commands are if the wireless card is turned off/blocked and if he can't connect/search for wireless networks. The person that asked the question can already connect to a network, but can't access the internet. –  Alaa Ali Jun 9 '13 at 7:07

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