> Ok. Maybe Windows is using (more agressive) powersaving? Can you enable
> PS debugging in ma80211?
Hi Johannes,

Today, I test Intel Centrino N-6205 Taylor Peak on Linux 2.6.39, It work perfect on Windows XP. 
'PS debugging in ma80211'?, Do you mean that I open the 'CONFIG_MAC80211_DEBUGFS=y' and See the log?
The detail step as following:
 
1. Test enviroment:
Wi-Fi client OS enviroment:

 Dell E6400 desktop + Windows xp, 
 Dell E6400 desktop + Ubuntu 11.10,
 Iphone4 + Apple MAC.

Wi-Fi AP card: Intel Centrino N-6205 Taylor Peak
Wi-Fi AP kernel driver version: Linux 2.6.39, compat-wireless-2012-03-18

2. Test command and step:
> hostapd -B /etc/hostapd.conf
> ifconfig br0 192.168.0.1
> ifconfig wlan0 0.0.0.0
> dhcpd -cf /etc/dhcpd/dhcpd.conf
> echo "1">  /proc/sys/net/ipv4/ip_forward
> iptables -t nat -A POSTROUTING -s 192.168.0.0/16 -o eth0 -j MASQUERADE
> route add default gw 128.224.162.1


3. Test result:
Test 1: mainline Linux 2.6.39, Three Wi-Fi client connect the Wi-Fi AP(Intel Centrino N-6205 Taylor Peak) at the same time. I can see film and do any thing in the internet.
Dell E6400 desktop + Ubuntu 11.10 work perfect
Dell E6400 desktop + Windows xp work perfect
Iphone4S work perfect

Test 2: compat-wireless-2012-03-18 package
 Dell E6400 desktop + Windows xp can not connect to internet. 
 Dell E6400 desktop + Ubuntu 11.10 and Iphone4 + Apple MAC work normal.

4. The hostapd.conf and dhcpd.conf are in the attachment.


Thanks,
hongbo 

>
> johannes
>
>