有线网络不再起作用。从安装到现在一直有效。我尝试重置路由器和 homeplug AV（一种通过电力线的有线网络） - 没有变化。homeplug 仍可与其他系统配合使用。当我尝试连接它时，它报告
ip 配置不可用
结果lshw -C network是：
warning: you should run this program as super-user.
description: ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor
physical ID:0
bus info: pci@0000:03:00.0
logical name: enp3s0
version: 09
serial: 08:62:66:9e:1d:16
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33 mhz
capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168f-1_0.0.5 06/18/12 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
resources: irq:34 ioport:e800(size=256) memory:fdfff000-fdffffff memory:fdff8000-fdffbfff
运行它sudo似乎增加了这些功能：
pm msi pciexpress msix vpd