开始以为自己的无线网卡驱动问题：

查看网卡型号：lspci -v | grep Network

显示：2c:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b852

寻找到匹配网卡并安装后，问题并没有解决。

后来通过各种寻找，终于在archlinux官方论坛找到一个 相关的帖子[]

由于自己的菜鸡，在安装archlinux时，同时安装并运行了NetworkManager.service，wpa_supplicant.service，iwd.service服务。停止NetworkManager.service与wpa_supplicant.service服务后，网络恢复正常。

查看自己运行的服务：

命令一：find /etc/systemd -name "*.service"/etc/systemd/system/getty.target.wants/getty@tty1.service/etc/systemd/system/sysinit.target.wants/systemd-timesyncd.service/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service/etc/systemd/system/display-manager.service/etc/systemd/system/dbus-org.freedesktop.timesync1.service/etc/systemd/system/multi-user.target.wants/dhcpcd.service/etc/systemd/system/multi-user.target.wants/iwd.service/etc/systemd/system/multi-user.target.wants/NetworkManager.service/etc/systemd/system/bluetooth.target.wants/bluetooth.service/etc/systemd/system/dbus-org.bluez.service/etc/systemd/system/network-online.target.wants/NetworkManager-wait-online.service

命令二：systemctl --type=service --state=runningUNIT LOAD ACTIVE SUB DESCRIPTIONbluetooth.service loaded active running Bluetooth servicedbus.service loaded active running D-Bus System Message Busdhcpcd.service loaded active running dhcpcd on all interfacesiwd.service loaded active running Wireless servicepolkit.service loaded active running Authorization Managersddm.service loaded active running Simple Desktop Display Managersystemd-journald.service loaded active running Journal Servicesystemd-logind.service loaded active running User Login Managementsystemd-timesyncd.service loaded active running Network Time Synchronizationsystemd-udevd.service loaded active running Rule-based Manager for Device Events and Filesupower.service loaded active running Daemon for power managementuser@1000.service loaded active running User Manager for UID 1000

命令二是在我停止相关服务后查看的，停止服务的命令：

systemctl stop NetworkManager.servicesystemctl stop wpa_supplicant.service

禁止开机自动启动：

systemctl disable NetworkManager.service