我对 Ubuntu 还算是个新手，在网络方面肯定没有经验，在网上搜索了几个小时的解决方案后，我还是找不到如何解决我的问题。我希望有人能帮助我，因为这很紧急，也很令人沮丧 XD
正如标题所述，在网络管理器任务栏图标下，“启用 Wifi”选项已完全消失。“启用网络”选项在那里，但即使弹出窗口显示我“已连接到有线连接 1”，我也无法访问互联网。该机器与 Windows 10 双重启动，可自动连接到 Wifi 并可以与互联网建立有线连接。这让我相信存在驱动程序问题，但我不知道。我不是在这里安装 Ubuntu 14.04 的人，所以我不知道是否安装了第三方驱动程序等。
以下是我见过的一些常见的命令输出和文件内容，如果我遗漏了其他内容，请告诉我：
$ ifconfig
eth0 Link encap:Ethernet HWaddr 30:9c:23:25:cb:11
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16 Memory:df200000-df220000
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:143 errors:0 dropped:0 overruns:0 frame:0
TX packets:143 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:10085 (10.0 KB) TX bytes:10085 (10.0 KB)
$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
路由 -n 的输出是空的，因此显然那里有问题。
/etc/resolve/conf 和 /etc/resolvconf/resolv.conf.d/head 的内容：
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
再说了，它是空的，所以那里也有问题。
$ ping -c4 localhost
PING localhost (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.047 ms
64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.033 ms
64 bytes from localhost (127.0.0.1): icmp_seq=3 ttl=64 time=0.037 ms
64 bytes from localhost (127.0.0.1): icmp_seq=4 ttl=64 time=0.031 ms
--- localhost ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2999ms
rtt min/avg/max/mdev = 0.031/0.037/0.047/0.006 ms
$ ping 8.8.8.8
connect: Network is unreachable
$ ping google.com
ping: unknown host google.com
$ sudo lshw -C network
*-network
description: Ethernet interface
product: Ethernet Connection (2) I219-V
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
logical name: eth0
version: 00
serial: 30:9c:23:25:cb:11
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.8-4 latency=0 link=no multicast=yes port=twisted pair
resources: irq:131 memory:df200000-df21ffff
/var/lib/NetworkManager/NetworkManager.state 的内容
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
我尝试了以下方法：
- sudo 服务网络管理器停止/启动/重启
- killall unity-panel-service
- 在/usr/lib/unity/unity-panel-service
- sudo rfkill 解除所有阻止
- sudo dpkg-重新配置 resolvconf
而且我可能还尝试过更多。
如果有人有任何建议，我将不胜感激。谢谢！
-缺口
更新 1
设置静态IP后：
$ ifconfig
eth0 Link encap:Ethernet HWaddr 30:9c:23:25:cb:11
inet addr:192.168.86.181 Bcast:192.168.86.255 Mask:255.255.255.0
inet6 addr: fe80::329c:23ff:fe25:cb11/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6820 errors:0 dropped:2 overruns:0 frame:0
TX packets:363 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:670993 (670.9 KB) TX bytes:55189 (55.1 KB)
Interrupt:16 Memory:df200000-df220000
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:2442 errors:0 dropped:0 overruns:0 frame:0
TX packets:2442 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:282394 (282.3 KB) TX bytes:282394 (282.3 KB)
lsmod 返回的信息如下：
$ lsmod
Module Size Used by
uas 24576 0
usb_storage 69632 1 uas
bnep 20480 2
rfcomm 69632 0
nvidia_uvm 647168 0
nvidia_drm 45056 1
nvidia_modeset 860160 4 nvidia_drm
binfmt_misc 20480 1
nvidia 13144064 189 nvidia_modeset,nvidia_uvm
joydev 20480 0
input_leds 16384 0
snd_hda_codec_realtek 90112 1
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
i915_bpo 1306624 0
snd_hda_codec_hdmi 53248 1
intel_ips 20480 1 i915_bpo
i2c_algo_bit 16384 1 i915_bpo
snd_hda_intel 40960 5
snd_hda_codec 135168 4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_hda_core 73728 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep 16384 1 snd_hda_codec
snd_pcm 106496 4
snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
hci_uart 77824 0
intel_rapl 20480 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
kvm_intel 167936 0
btbcm 16384 1 hci_uart
btqca 16384 1 hci_uart
btintel 16384 1 hci_uart
bluetooth 516096 14 bnep,btbcm,btqca,hci_uart,rfcomm,btintel
kvm 536576 1 kvm_intel
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
drm_kms_helper 151552 2 i915_bpo,nvidia_drm
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 2 snd_pcm,snd_seq
snd 81920 21 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
drm 360448 5 i915_bpo,drm_kms_helper,nvidia_drm
fb_sys_fops 16384 1 drm_kms_helper
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
mxm_wmi 16384 0
soundcore 16384 1 snd
serio_raw 16384 0
shpchp 36864 0
irqbypass 16384 1 kvm
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
aesni_intel 167936 0
mei_me 36864 0
mei 98304 1 mei_me
aes_x86_64 20480 1 aesni_intel
lrw 16384 1 aesni_intel
gf128mul 16384 1 lrw
glue_helper 16384 1 aesni_intel
ablk_helper 16384 1 aesni_intel
cryptd 20480 3
ghash_clmulni_intel,aesni_intel,ablk_helper
i2c_hid 20480 0
8250_fintek 16384 0
video 40960 1 i915_bpo
intel_lpss_acpi 16384 0
intel_lpss 16384 1 intel_lpss_acpi
mac_hid 16384 0
acpi_als 16384 0
kfifo_buf 16384 1 acpi_als
industrialio 57344 2 acpi_als,kfifo_buf
acpi_pad 24576 0
wmi 20480 1 mxm_wmi
parport_pc 36864 1
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,ppdev,parport_pc
hid_generic 16384 0
usbhid 49152 0
hid 118784 3 i2c_hid,hid_generic,usbhid
e1000e 233472 0
psmouse 131072 0
ptp 20480 1 e1000e
pps_core 20480 1 ptp
ahci 36864 3
libahci 32768 1 ahci
fjes 28672 0
答案1
据我所知，您的网络已启动 (ifconfig eth0)，但没有 IP 地址。因此，请为链接提供一个静态 IP 地址，或通过 dhcp 获取一个。