Kubuntu 22.04仅Wi-Fi正常但以太网无法工作求助

各位好，我遇到了一个以太网故障问题：今天插上网线后，发现以太网完全无法使用，系统里甚至连以太网的图标都没显示出来。不过Wi-Fi是正常工作的，下面是相关的系统信息和我已经尝试过的操作，希望大家能帮忙看看怎么解决。

系统输出信息 #

ifconfig 执行结果：

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
inet 127.0.0.1  netmask 255.0.0.0
inet6 ::1  prefixlen 128  scopeid 0x10<host>
loop  txqueuelen 1000  (Local Loopback)
RX packets 1073  bytes 115411 (115.4 KB)
RX errors 0  dropped 0  overruns 0  frame 0
TX packets 1073  bytes 115411 (115.4 KB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
inet 192.168.1.40  netmask 255.255.255.0  broadcast 192.168.1.255
inet6 fe80::a181:9afb:22ae:b05  prefixlen 64  scopeid 0x20<link>
ether b4:8c:9d:66:75:3d  txqueuelen 1000  (Ethernet)
RX packets 28934  bytes 25749531 (25.7 MB)
RX errors 0  dropped 0  overruns 0  frame 0
TX packets 15772  bytes 3193820 (3.1 MB)
TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

sudo lshw -c network 执行结果：

*-network UNCLAIMED
description: Ethernet controller
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
version: 15
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list
configuration: latency=0
resources: ioport:e000(size=256) memory:fc704000-fc704fff memory:fc700000-fc703fff

*-network
description: Wireless interface
product: MT7921 802.11ax PCI Express Wireless Network Adapter
vendor: MEDIATEK Corp.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 00
serial: b4:8c:9d:66:75:3d
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=mt7921e driverversion=5.15.0-89-generic firmware=____010000-20220209150915 ip=192.168.1.40 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: iomemory:ff0-fef iomemory:ff0-fef iomemory:ff0-fef irq:77 memory:ff20300000-ff203fffff memory:ff20400000-ff20403fff memory:ff20404000-ff20404fff

我已经尝试过的操作 #

• 执行 sudo systemctl restart NetworkManager 重启网络管理器
• 下载并安装了Realtek官方对应的以太网驱动
• 完成上述操作后重启了系统，但问题依旧存在

现在实在没头绪了，有没有大佬能指点一下修复方法？或者我是不是只能重新安装Kubuntu 22.04？

备注：内容来源于stack exchange，提问作者Anurag kamal