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根本没有网络（wifi 和以太网）

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根本没有网络（wifi 和以太网）

大约一个月前，我从 Windows 切换到 Ubuntu 17.04，安装 Ubuntu 后，我的 wifi 就出现了问题。我有 RTL8821AE 网卡，必须安装第三方驱动程序这里。wifi
工作得不是很好，我每天必须重启 2-3 次 wifi，因为它停止工作了，但重启后就好了。
今天我的 wifi 坏了，所以我重启了它，但它没有恢复。
打开 nmtui 后，根本没有 wifi 或有线选项卡。尝试连接有线，但没有用。请帮帮我。

我运行的一些命令：

是否配置

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 1760  bytes 135548 (135.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1760  bytes 135548 (135.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

系统配置

wlp2s0    IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:on

串行通信

00:00.0 Host bridge: Intel Corporation Device 5904 (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Device 5916 (rev 02)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Device 9d58 (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter

rfkill 列出全部

0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no
3: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

瘦身

  *-network DISABLED
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: enp1s0
       version: 10
       serial: c8:5b:76:5a:dd:d3
       size: 10Mbit/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=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:126 ioport:4000(size=256) memory:b1104000-b1104fff memory:b1100000-b1103fff
  *-network DISABLED
       description: Wireless interface
       product: RTL8821AE 802.11ac PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 00
       serial: 78:45:61:eb:b8:ab
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8821ae driverversion=4.10.0-33-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:129 ioport:3000(size=256) memory:b1000000-b1003fff

答案1

由于某种原因，网络管理器网络在配置中被禁用。必须关闭网络管理器服务，转到 network-manager.state 文件，打开网络并重新启动网络管理器服务。

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