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以太网突然停止工作

tag-icon • tag-icon debian networking ethernet
以太网突然停止工作

重新启动后，以太网停止工作，网络小部件从面板上消失。我尝试了 Xubuntu 的实时启动，以太网没有问题。我还重新启动了路由器。我使用 XFCE 运行 Debian 10。这是一些输出：

$ lspci -k | grep -A 2 Ethernet
03:00.0 Ethernet controller: Qualcomm Atheros Killer E220x Gigabit Ethernet Controller (rev 13)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Killer E220x Gigabit Ethernet Controller
        Kernel driver in use: alx
        Kernel modules: alx

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$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 44:8a:5b:fb:0b:88 brd ff:ff:ff:ff:ff:ff
3: wlp4s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 28:b2:bd:d1:72:fc brd ff:ff:ff:ff:ff:ff
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether 02:42:f9:09:d9:19 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

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$ ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 44:8a:5b:fb:0b:88 brd ff:ff:ff:ff:ff:ff
3: wlp4s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 28:b2:bd:d1:72:fc brd ff:ff:ff:ff:ff:ff
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
    link/ether 02:42:f9:09:d9:19 brd ff:ff:ff:ff:ff:ff

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   $ cat /etc/network/interfaces
    # This file describes the network interfaces available on your system
    # and how to activate them. For more information, see interfaces(5).
    source /etc/network/interfaces.d/*
    # The loopback network interface
    auto lo
    iface lo inet loopback

编辑：运行 dhclient -v enp3s0 后，一切恢复正常，但我每次重新启动时都需要运行它。我从未手动安装过任何连接管理器。

其他输出：

$ ls /etc/NetworkManager
dispatcher.d  NetworkManager.conf  system-connections

⠀

$ ls /etc/network/interfaces.d
setup

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