I have an Archer C7 V2 running 15.05.1. Configuring the 2.4GHz radio for 40MHz doesn't seem to work — it still only runs at 20MHz.
The relevant section of /etc/config/wireless is
config wifi-device 'radio1'
option type 'mac80211'
option hwmode '11g'
option path 'platform/qca955x_wmac'
option txpower '23'
option country 'US'
option channel 'auto'
option htmode 'HT40'config wifi-iface
option device 'radio1'
option network 'lan'
option mode 'ap'
option encryption 'psk2'
option key '[redacted]'
option ssid '[redacted]'
and the /var/run/hostapd-phy1.conf that gets produced is
driver=nl80211
logger_syslog=127
logger_syslog_level=2
logger_stdout=127
logger_stdout_level=2
country_code=US
ieee80211d=1
hw_mode=g
channel=acs_surveyieee80211n=1
ht_coex=0
ht_capab=[HT40+][LDPC][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][DSSS_CCK-40]interface=wlan1
ctrl_interface=/var/run/hostapd
ap_isolate=1
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
wpa_passphrase=[redacted]
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=[redacted]
bridge=br-lan
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
bssid=c4:6e:1f:d3:4a:f9
And what I get is a working 2.4GHz 802.11n network on a reasonably selected channel... still only 20MHz wide. What do I need to do to get 40 working?
(Last edited by nickptar on 30 Oct 2016, 06:24)