DFS start_dfs_cac() failed, -1

[Zefir Kurtisi]

Hello Todd,

On 06/26/2017 11:45 PM, Todd Lewis wrote:
> I'm setting up a access point on a linux router.
> I am unable to start hostapd. I get the error DFS start_dfs_cac() failed, -1
> 
> I'm using a
> Compex WLE600VX  Qualcom QCA9882
> 
> 
> [...]
> 
> The configuration file
> /etc/hostapd/hostapd.conf
> 
> ctrl_interface=/var/run/hostapd
> ctrl_interface_group=wheel
> bridge=br0
> interface=wlp4s0
> driver=nl80211
> ssid=test-5g
> hw_mode=a
> max_num_sta=128
> auth_algs=1
> disassoc_low_ack=1
> ieee80211h=1
> ieee80211d=1
> country_code=US
> channel=0
> ieee80211ac=1
> vht_oper_chwidth=1
> vht_capab=[HT40+][LDPC][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][DSSS_CCK-40]
> vht_oper_centr_freq_seg0_idx=42
> wpa=3
> wpa_key_mgmt=WPA-PSK
> wpa_passphrase=darkcrystal1
> wpa_pairwise=CCMP
> 

you can't have vht_capab without ht_capab. In fact, in your hostapd.conf
vht_capab should be renamed to ht_capab, then it might work.

Check [1] for further information.


Good luck,
Zefir


[1]
https://wireless.wiki.kernel.org/en/users/drivers/ath10k/configuration#configuring_hostapd