我的有线连接一直工作正常，突然间，我断开了连接，有线连接停止工作。无线仍在工作，以太网在 Windows 上工作。此外，当我通过 USB 使用外部以太网端口时，我能够连接到网络。
一些可能有用的输出
ifconfig
enp1s0f1 Link encap:Ethernet HWaddr f0:76:1c:36:99:a7
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:373 errors:0 dropped:0 overruns:0 frame:0
TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:39419 (39.4 KB) TX bytes:1151 (1.1 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:12935 errors:0 dropped:0 overruns:0 frame:0
TX packets:12935 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:658351 (658.3 KB) TX bytes:658351 (658.3 KB)
wlp2s0 Link encap:Ethernet HWaddr ac:b5:7d:05:ba:5e
inet addr:10.42.0.121 Bcast:10.42.0.255 Mask:255.255.255.0
inet6 addr: fe80::32bc:b5ab:5dc:9f7f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5848 errors:0 dropped:0 overruns:0 frame:6480
TX packets:5007 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4093939 (4.0 MB) TX bytes:824997 (824.9 KB)
Interrupt:19
lspci | grep -i net
01:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
sudo lshw -class network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0.1
bus info: pci@0000:01:00.1
logical name: enp1s0f1
version: 12
serial: f0:76:1c:36:99:a7
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8411-2_0.0.1 07/08/13 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:46 ioport:4000(size=256) memory:b3504000-b3504fff memory:b3500000-b3503fff
*-network
description: Wireless interface
product: BCM43142 802.11b/g/n
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 01
serial: ac:b5:7d:05:ba:5e
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.30.223.248 (r487574) ip=10.42.0.121 latency=0 multicast=yes wireless=IEEE 802.11abg
resources: irq:19 memory:b3400000-b3407fff
已做出的努力
尝试重新安装网络管理器
尝试了另一篇文章中的解决方案
sudo service network-manager stop
sudo ifconfig enp1s0f1 down
sudo ifconfig enp1s0f1 up
sudo service network-manager start
提前致谢。