#18363: Archer C7 v2, 5GHz wifi not enabling without also enabling 2.4GHz
----------------------------------------------+----------------------------
Reporter: olmari | Owner: developers
Type: defect | Status: new
Priority: high | Milestone: Chaos Calmer
Component: base system | (trunk)
Keywords: wifi, wireless, enable 5GHz only | Version: Trunk
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Here is kinda tricky one: Using selfcompiled trunk [43283], default
profile for TP-Link Archer C7 v2, after getting both wifi-interfaces
available (ticket #18362), I can not enable '''only''' 5GHz 11ac
interface. When trying to enable only 5GHz wifi, it doesn't come up and
logread relevant part shows this when doing "wifi up":
{{{
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502):
Configuration file: /var/run/hostapd-phy0.conf
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): Hardware
does not support configured mode
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): wlan0: IEEE
802.11 Hardware does not support configured mode (2) (hw_mode in
hostapd.conf)
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): Could not
select hw_mode and channel. (-2)
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): wlan0:
interface state UNINITIALIZED->DISABLED
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): wlan0: AP-
DISABLED
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): wlan0:
Unable to setup interface.
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502):
hostapd_free_hapd_data: Interface wlan0 wasn't started
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): cat: can't
open '/var/run/wifi-phy0.pid': No such file or directory
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): Command
failed: Invalid argument
Sun Nov 16 22:22:45 2014 daemon.notice netifd: radio0 (20502): Device
setup failed: HOSTAPD_START_FAILED
}}}
/etc/config/wireless: (default openwrt generates, only enabled 5GHz wifi)
{{{
config wifi-device radio0
option type mac80211
option channel 36
option hwmode 11a
option path 'pci0000:01/0000:01:00.0'
option htmode VHT80
config wifi-iface
option device radio0
option network lan
option mode ap
option ssid OpenWrt
option encryption none
config wifi-device radio1
option type mac80211
option channel 11
option hwmode 11g
option path 'platform/qca955x_wmac'
option htmode HT20
config wifi-iface
option device radio1
option network lan
option mode ap
option ssid OpenWrt
option encryption none
# REMOVE THIS LINE TO ENABLE WIFI:
option disabled 1
}}}
When I then enable the 2.4GHz wifi, both wifi gets up normally, same exact
config used otherwise... Also after this I could disable both and/or
disable 2.4GHz and enable 5GHz and everything still continues to work,
until reboot... After reboot I have to enable the 2.4GHz wifi in order for
5GHz to work too, after that everything again works...
So there is something that doesn't go right with ath10k 5GHz wifi only
enabled...
--
Ticket URL: <https://dev.openwrt.org/ticket/18363>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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