FS#895 - buffalo wzr-hp-g300nh can't have 300mbps

[openwrt-bot]

Diamond2:

Supply the following if possible:

• Device problem occurs on buffalo wzr-hp-g300nh
• Software versions of LEDE release, packages, etc: LEDE 12.01.2 and SNAPSHOT r4438-f5f1d40
• Steps to reproduce

Hi,

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.

[openwrt-bot]

arjendekorte:

Despite you asking for HT40, you're only getting a 20 MHz channel 1 which will not support more than 144 Mbps in ideal conditions. The most likely cause is, that the AP has detected another network on channel 5 (or adjacent to that) and therefor is unable (= not allowed) to use channel 1+5.

If you have another AP that is already using a 40 MHz wide channel, it is not possible to have both of them using 40 MHz wide channels without causing overlaps. You may (or may not) be able to force both of them to use 40 MHz channels, but this is neither recommended nor legal.

In residential areas it is not uncommon that you're limited to 20 MHz channel width on the 2.4 GHz band due to the sheer number of wireless networks in range.