802.11-N Howto

[fyrbrds at netscape.net]

-----Original Message-----
From: Christopher Chan <christopher.chan at bradbury.edu.hk>
To: ubuntu-users at lists.ubuntu.com
Sent: Mon, Nov 2, 2009 1:51 am
Subject: Re: 802.11-N Howto










fyrbrds at netscape.net wrote:
> All true. But when you dual boot a box and you get 300 Mb/s on Windows 
> and 100 Kb/s on Ubuntu, none of that matters. Something is wrong with 
> the config. I only need to know what tools are available to tweak the 
> config. Wifi signal levels, channel numbers, etc. are irrelevant. The 
> router can do 300 Mb/s on several n devices including this one. It 
> just can't do it with Ubuntu so far. I need help from someone who 
> knows tools that allow more than the basic of just typing your WPA key 
> and then crossing your fingers, which is essentially what I have done.

Please do not top post. It is alright for me since I am the sole replier 
at the moment but it might throw others off the track. Any tweaking will 
have to be done at the driver level I suspect. On Windows, I'd have to 
go into the driver's settings for Location and other stuff. In other 
words, I think this is going to be specific for each chipset. So you 
will have to start by letting us know what you've got before we can even 
try to figure it out.
>
> John
>
>
> -----Original Message-----
> From: Christopher Chan <christopher.chan at bradbury.edu.hk>
> To: ubuntu-users at lists.ubuntu.com
> Sent: Mon, Nov 2, 2009 1:07 am
> Subject: Re: 802.11-N Howto
>
> fyrbrds at netscape.net <mailto:fyrbrds at netscape.net> wrote:
>
> > Anyone know how to tweak 802.11-N adapters for max speed? Can Ubuntu 
<snip>
>

Ok, here are the details:
The nic in this computer is a DWA-556 Xtreme N PCI Express Desktop Adapter
the output of lspci -v | less is:
03:00.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01)
        Subsystem: D-Link System Inc Device 3a70
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at cfdf0000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: <access denied>
        Kernel driver in use: ath9k
        Kernel modules: ath9k

If memory serves, this is the same kernel module (by name) that I used during my last Linux install (SuSE). I did not have this problem then but then I did not use it that often.

Are there not gui tools for configuring the connection parameters 802.11 b/g/n, WPA/WPA2, TKIP/AES without having to make changes at the driver level?
I would like to try to force 802.11-n/WPA2/AES. Why someone would make a tool that says WPA/WPA2 as if the two are synonymous is beyond me. Those are two standards have very important distinctions.

Regards,

John

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