hostapd 20/40 MHz 默认禁止
20/40 MHz operation not permitted on channel pri=7 sec=3 based on overlapping BSSes
解压 hostapd 然后修改
//if (!oper40) { 修改为如下一行 if (0) { wpa_printf(MSG_INFO, "20/40 MHz operation not permitted on " "channel pri=%d sec=%d based on overlapping BSSes", iface->conf->channel, iface->conf->channel + iface->conf->secondary_channel * 4); iface->conf->secondary_channel = 0; if (iface->drv_flags & WPA_DRIVER_FLAGS_HT_2040_COEX) {