流行操作系统 / Ubuntu 20.04；不再有网络接口

Question

我不久前安装了 Pop OS。一切工作正常。

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几天前，我打开笔记本电脑，但互联网连接丢失了。我检查了所有设置并意识到我的网络设备在配置中丢失了。

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无网络设备

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当我使用安装棒启动时，设备是可见的

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有线接口

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无线网络接口

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我怎样才能让设备恢复到我的配置？\n我尝试了很多技巧，但没有任何效果。

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这里有一些附加信息：

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    ip a\n1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000\n    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n    inet 127.0.0.1/8 scope host lo\n       valid_lft forever preferred_lft forever\n    inet6 ::1/128 scope host \n       valid_lft forever preferred_lft forever\n2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000\n    link/ether 84:a9:3e:44:7a:ad brd ff:ff:ff:ff:ff:ff\n    inet 192.168.0.241/24 brd 192.168.0.255 scope global dynamic enp1s0\n       valid_lft 5248sec preferred_lft 5248sec\n    inet6 fe80::86a9:3eff:fe44:7aad/64 scope link \n       valid_lft forever preferred_lft forever\n3: wlp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noqueue state DOWN group default qlen 1000\n    link/ether d8:9c:67:24:4b:e7 brd ff:ff:ff:ff:ff:ff\n\n\n\nsudo lshw -class network\n  *-network                 \n       Beschreibung: Ethernet interface\n       Produkt: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller\n       Hersteller: Realtek Semiconductor Co., Ltd.\n       Physische ID: 0\n       Bus-Informationen: pci@0000:01:00.0\n       Logischer Name: enp1s0\n       Version: 15\n       Seriennummer: 84:a9:3e:44:7a:ad\n       Gr\xc3\x83\xc2\xb6\xc3\x83\xc5\xb8e: 1Gbit/s\n       Kapazit\xc3\x83\xc2\xa4t: 1Gbit/s\n       Breite: 64 bits\n       Takt: 33MHz\n       F\xc3\x83\xc2\xa4higkeiten: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation\n       Konfiguration: autonegotiation=on broadcast=yes driver=r8169 duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=192.168.0.241 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s\n       Ressourcen: irq:19 ioport:4000(Gr\xc3\x83\xc2\xb6\xc3\x83\xc5\xb8e=256) memory:b1204000-b1204fff memory:b1200000-b1203fff\n  *-network DEAKTIVIERT\n       Beschreibung: Kabellose Verbindung\n       Produkt: RTL8723DE 802.11b/g/n PCIe Adapter\n       Hersteller: Realtek Semiconductor Co., Ltd.\n       Physische ID: 0\n       Bus-Informationen: pci@0000:02:00.0\n       Logischer Name: wlp2s0\n       Version: 00\n       Seriennummer: d8:9c:67:24:4b:e7\n       Breite: 64 bits\n       Takt: 33MHz\n       F\xc3\x83\xc2\xa4higkeiten: pm msi pciexpress bus_master cap_list ethernet physical wireless\n       Konfiguration: broadcast=yes driver=rtw_pci driverversion=5.4.0-7634-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11\n       Ressourcen: irq:135 ioport:3000(Gr\xc3\x83\xc2\xb6\xc3\x83\xc5\xb8e=256) memory:b1100000-b110ffff\n

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使用“sudo dhclient -v enpls0”我可以使有线连接正常工作，但速度非常慢（最大 3 MBit）。

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Answer 1

好吧，经过几天的谷歌搜索，我刚刚找到了解决方案：

nmcli networking {on | off | connectivity}

使用 nmcli 命令我可以重新激活网络接口。重新启动后，有线和 WiFi 再次可用。