Buffalo wzr-hp-g300nh - wifi 40 MHz doesn't work


Using LEDE 12.01.2 and SNAPSHOT r4438-f5f1d40 but I can't have 300mbps for wifi connection. The maximum connection is only 130mbps. The router is next to my laptop.

root@router:~# iw wlan0 info
Interface wlan0
ifindex 12
wdev 0x6
addr 00:xx:xx:xx:xx:xx
ssid LEDA
type AP
wiphy 0
channel 1 (2412 MHz), width: 20 MHz, center1: 2412 MHz

root@router:~# cat /etc/config/wireless

config wifi-device 'radio0'
option type 'mac80211'
option hwmode '11g'
option path 'platform/ath9k'
option txpower '17'
option country 'US'
option channel 'auto'
option htmode 'HT40'

config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option macfilter 'allow'
option ssid 'LEDE'
option key 'mypassword'
option wmm '0'
list maclist 'xx:xx:xx:xx:xx:xx'
option encryption 'psk2+ccmp'

With the same laptop wireless interface I can connect to another AP with 300mbps.

Please help to check,
Thank you.

Noone is using wzr-hp-g300nh?

Well, your question is already answered: https://bugs.lede-project.org/index.php?do=details&task_id=895