我的笔记本电脑上安装了 Kali Linux 2020.2。当我今天开始使用时，我无法连接到任何 wifi 网络。我检查了网络管理器：
systemctl status network-manager.service
● NetworkManager.service - Network Manager
Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2020-04-24 16:11:21 MDT; 2min 21s ago
Docs: man:NetworkManager(8)
Main PID: 1709 (NetworkManager)
Tasks: 3 (limit: 18802)
Memory: 3.8M
CGroup: /system.slice/NetworkManager.service
└─1709 /usr/sbin/NetworkManager --no-daemon
Apr 24 16:12:36 kali NetworkManager[1709]: <warn> [1587766356.8333] device (wlan0): re-acquiring supplicant interface (#5).
Apr 24 16:12:41 kali NetworkManager[1709]: <error> [1587766361.0602] device (wlan0): Couldn't initialize supplicant interface: GDBus.Error:fi.w1.wpa_supplicant1.UnknownError: wpa_supplicant couldn't grab this interface.
Apr 24 16:12:41 kali NetworkManager[1709]: <info> [1587766361.0602] device (wlan0): supplicant interface keeps failing, giving up
于是我检查了wpa_supplicant的状态：
systemctl status wpa_supplicant.service
● wpa_supplicant.service - WPA supplicant
Loaded: loaded (/lib/systemd/system/wpa_supplicant.service; disabled; vendor preset: disabled)
Active: active (running) since Fri 2020-04-24 16:06:48 MDT; 7min ago
Main PID: 1581 (wpa_supplicant)
Tasks: 1 (limit: 18802)
Memory: 1.2M
CGroup: /system.slice/wpa_supplicant.service
└─1581 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
Apr 24 16:12:24 kali wpa_supplicant[1581]: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Apr 24 16:12:27 kali wpa_supplicant[1581]: Could not set interface wlan0 flags (UP): Operation already in progress
Apr 24 16:12:27 kali wpa_supplicant[1581]: WEXT: Could not set interface 'wlan0' UP
Apr 24 16:12:27 kali wpa_supplicant[1581]: wlan0: Failed to initialize driver interface
然后我检查了我的网络接口，果然，wlan0 已关闭：
ip a
2: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 16:be:3d:a1:54:7e brd ff:ff:ff:ff:ff:ff
我尝试手动启动 wlan0 并收到以下消息：
ip link set wlan0 up
RTNETLINK answers: Operation already in progress
如果有人知道导致此问题的原因或如何解决它，那就太好了，谢谢！