Freebsd 14.2系统下，网卡是AX200 

先检查网卡sysctl net.wlan.devices

sysctl net.wlan.devices

能识别出已经安装的

sysctl net.wlan.devices
net.wlan.devices: iwlwifi0

配置wlan0

# ifconfig wlan0 create wlandev iwlwifi0
# ifconfig wlan0 up
# ifconfig wlan0 scan

scan wifi网络

sudo ifconfig wlan0 up scan

装驱动前啥都没有，装驱动后，终于有信息了：

sudo ifconfig wlan0 up scan
SSID/MESH ID                      BSSID              CHAN RATE    S:N     INT CAPS
0xe5b08fe8b186e4b8                48:12:8f:60:45:9c    1   54M  -64:-96   100 EPS  RSN WME BSSLOAD HTCAP VHTCAP VHTOPMODE WPS
CMCC-YCKx                         d8:a0:e8:97:88:a9    1   54M  -87:-96   100 EPS  VHTPWRENV APCHANREP WPA RSN BSSLOAD HTCAP VHTCAP VHTOPMODE WME
FAST_2.4G_57A1                    d4:83:04:9b:57:a1    1   54M  -85:-96   100 EP   APCHANREP APCHANREP WPA RSN HTCAP WME BSSLOAD
CU_trt9                           80:ee:25:72:d3:b0    1   54M  -75:-96   100 EP

调试日志定位问题sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -dd

sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -dd

pciconf -lv查找网卡

显示正常啊

iwlwifi0@pci0:3:0:0:	class=0x028000 rev=0x1a hdr=0x00 vendor=0x8086 device=0x2723 subvendor=0x8086 subdevice=0x4080vendor     = 'Intel Corporation'device     = 'Wi-Fi 6 AX200'class      = network

查找固件

ls /boot/modules/iwlwifi-*.ko

发现没有，也许14.x不放在这里了

安装固件iwlwifi

pkg search iwlwifi

这些驱动，该装哪一个呢？ 

pkg search iwlwifi
wifi-firmware-iwlwifi-kmod-20241017.1402000_2 Firmware modules for the iwlwifi (iwlwifi) WiFi NIC driver
wifi-firmware-iwlwifi-kmod-22000-20241017.1402000_2 Firmware modules for the iwlwifi (22000) WiFi NIC driver
wifi-firmware-iwlwifi-kmod-7000-20241017.1402000_2 Firmware modules for the iwlwifi (7000) WiFi NIC driver
wifi-firmware-iwlwifi-kmod-8000-20241017.1402000_2 Firmware modules for the iwlwifi (8000) WiFi NIC driver
wifi-firmware-iwlwifi-kmod-9000-20241017.1402000_2 Firmware modules for the iwlwifi (9000) WiFi NIC driver
wifi-firmware-iwlwifi-kmod-ax210-20241017.1402000_2 Firmware modules for the iwlwifi (ax210) WiFi NIC driver
wifi-firmware-iwlwifi-kmod-bz-20241017.1402000_2 Firmware modules for the iwlwifi (bz) WiFi NIC driver
wifibox-alpine-iwlwifi-20250323 Wifibox guest based on Alpine Linux
wifibox-iwlwifi-1.6.0          Embedded (virtualized) wireless router

 可以安装9000和ax210两个之一。9000是最适合的，ax210可能向下兼容。

但是最后决定安装这个，这个应该是全都支持！

sudo pkg install wifi-firmware-iwlwifi-kmod

查看内核是否启动sudo kldstat |grep wifi

sudo kldstat |grep wifi

启动了

sudo kldstat |grep wifi
23    1 0xffffffff838c3000    95260 if_iwlwifi.ko
 

加载内核sudo kldload if_iwlwifi

sudo kldload if_iwlwifi
kldload: can't load if_iwlwifi: module already loaded or in kernel

查看wifi信号强度

ifconfig wlan0 scan | grep -E 'ssid|rssi'

当然，在极端情况下，scan网络只有监控的控制台有-5的报警，那是什么输出也没有的。 

重启wlan0接口连上wifi

sudo service ifnet restart 

sudo /etc/netstart 

最后一招，手工连wifi：sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf

sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf
输出

sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf
Successfully initialized wpa_supplicant
ioctl[SIOCS80211, op=20, val=0, arg_len=7]: Invalid argument
ioctl[SIOCS80211, op=20, val=0, arg_len=7]: Invalid argument
wlan0: Trying to associate with 00:5c:c2:15:5f:3e (SSID='xxxx' freq=2412 MHz)
wlan0: Associated with 00:5c:c2:15:5f:3e
wlan0: WPA: Key negotiation completed with 00:5c:c2:15:5f:3e [PTK=CCMP GTK=CCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to 00:5c:c2:15:5f:3e completed [id=6 id_str=]

终于连上了啊！ 

调试

scan网络的时候啥也没有,监控台有 -5的报警

tty1监控台端口有信息提示：

iwlwifi0: Scan failed! ret -5
iwlwifi0: ERROR: lkpi_ic_scan_start: hw_scan returned -5

也有人碰到这个问题：Problems setting up Wi-Fi with Intel AX200 according to the Handbook chapter 33.3 / 33.4 in FreeBSD 13.2-RELEASE | The FreeBSD Forums

sudo wpa_cli scan_results 报错：Failed to connect to non-global ctrl_ifname: (nil)  error: Inappropriate ioctl for device

调式日志