T510 iwn and 9.0

[Adrian Chadd]

Hi!

On 7 September 2011 13:36, Josh Paetzel <jpaetzel at freebsd.org> wrote:
> I run a thinkpad T510 with a:
>
>  iwn0: <Intel(R) Centrino(R) Advanced-N 6200> mem 0xf2000000-0xf2001fff irq 17
> at device 0.0 on pci3

The last person to touch this was bernhard; I don't know if he has
tinkered with the 6200 stuff though.

> I brought my laptop home tonight and was getting frequent disconnects here as
> well.  I have an apple airport extreme (the AP at work is a netgear of unknown
> model)
>
> I was able to regain a nice stable connection by running ifconfig wlan0 -ht.

Would you mind trying this instead:

ifconfig wlan0 -ampdutx

Once you've associated (ie, once HT has been enabled), and then run
dhclient and start doing traffic.
I'd like to see if it's a general HT issue or whether it's the TX
aggregation code in iwn that needs tinkering with.

Thanks,


Adrian