WiFi Management

Karl Auer kauer at biplane.com.au
Mon Sep 17 17:54:15 UTC 2012

On Mon, 2012-09-17 at 17:29 +0000, Mikie wrote:
> >Nothing. ifupdown uses the two "wpa-..." lines in
> "/etc/network/interfaces" to bring up wlan0.
> Well then why does it work when I have the wifi adapter in during
> setup but not work when I add it after setup.

> 12.04 LTS with an Alfa AWUS036NHR

The driver may not have been installed; or there may be a conflict with
another driver that you need to manually blacklist. If you are seeing a
"wlan0" interface at all, then the driver is probably there... what
messages do you get when you run this command:

   sudo /etc/init.d/networking restart

Does wlan0 appear when you run, say "iwlist scan"?

Can you compare a working system with your current system? If so, see
what network driver your wifi needs, and make sure that driver is loaded
and that no other driver is loaded that might conflict.

Try googling "Alfa AWUS036NHR linux driver".

Regards, K.

Karl Auer (kauer at biplane.com.au)

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