I have access to internet using a cable. I have an HP Pavilion dv6 Notebook and I'm on Ubuntu 14.04.4 LTS.

$ ifconfig
eth0      Link encap:Ethernet  HWaddr 08:2e:5f:73:8c:9b  
          inet adr:  Bcast:  Masque:
          adr inet6: fe80::a2e:5fff:fe73:8c9b/64 Scope:Lien
          Packets reçus:15403 erreurs:0 :0 overruns:0 frame:0
          TX packets:12284 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:15442691 (15.4 MB) Octets transmis:1330124 (1.3 MB)

lo        Link encap:Boucle locale  
          inet adr:  Masque:
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          Packets reçus:1402 erreurs:0 :0 overruns:0 frame:0
          TX packets:1402 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:212762 (212.7 KB) Octets transmis:212762 (212.7 KB)

$ lspci -v | grep -i network -A 6
04:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)
    Subsystem: Intel Corporation Centrino Wireless-N 2230 BGN
    Flags: bus master, fast devsel, latency 0, IRQ 45
    Memory at c2500000 (64-bit, non-prefetchable) [size=8K]
    Capabilities: <access denied>
    Kernel driver in use: iwlwifi

Here he seems to have a very similar problem and this command fixed it:

$ sudo apt-get purge bcmwl-kernel-source broadcom-sta-common broadcom-sta-source && \
  sudo apt-get install b43-fwcutter firmware-b43-installer

But I don't have a Broadcom... Is there a similar command I can execute?

  • Is eth0: in the ifconfig output, your wifi interface ? Are you sure you accidentally did not turn of the power to the wifi using a little slider switch that HP is famous for, placing in very inappropriate places ? If you checked all of these ans still can not make wifi function after a reboot, there is a likelihood that, the wifi adapter might have gone bad/broken
    – MelBurslan
    Commented Jun 28, 2016 at 18:43
  • The wifi adapter is fine (it works on windows). The wifi switch is on my f12 key and their is a little light which is white when the wifi is on and orange when it's off. On windows, when pressing I can switch between those two states but on linux it's stuck on orange. Commented Jun 28, 2016 at 18:51

1 Answer 1


Somehow, everything was soft blocked. The solution:

$ rfkill unblock all

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