Trouble with wifi on WPA encrypted network

Kenneth Adam Miller kennethadammiller at
Thu Aug 19 06:22:18 BST 2010

Indeed, I just rebooted into windows (i have a dual boot setup) and found
that windows device manager reports the wireless as this:
Atheros AR5B93 Wireless Network Adapter

On Thu, Aug 19, 2010 at 12:16 AM, Kenneth Adam Miller <
kennethadammiller at> wrote:

> Hi, I'm using Ubuntu 10.04
> I'm having trouble staying connected to a wifi network as the subject of my
> email describes. To give you more detail, I will say that what is happening,
> is I will suddenly stop receiving data packages. Network Monitor does NOT
> detect that I am disconnected. I haven't been patient enough to see if it
> will reconnect on it's own, because simply going up to NM in the top bar and
> selected the wireless that I want again does the trick. But I don't want to
> continually have to deal with this problem.
> Among the things that I have tried after following some of the forum posts
> that I have discovered with research are updating the kernel and creating a
> file /etc/modprobe.conf and placing the lines
> alias wlan0 iwlagn
> options iwlagn swcrypto50=1 swcrypto=1
> inside. I also placed this short line inside the file I created under
> "/etc/pm/config.d/00sleep_modules": SUSPEND_MODULES="ath9k"
> None of these have fixed the problem.
> Dmesg | tail reports this:
> In particular, this line has drawn my attention: [ 2134.207681] wlan0:
> deauthenticating from 30:46:9a:3d:b2:1a by local choice (reason=3)
> I am on an Acer 5740-6025 laptop. The wifi card is supposed to be this:
> 04:00.0 Network controller: Atheros Communications Inc. AR928X Wireless
> Network Adapter (PCI-Express) (rev 01)
> Does anyone know why this is happening? or what I can do to fix this?
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