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Ubuntu 16.04 LTS 上的 Wifi 已连接但突然无法使用

tag-icon • tag-icon networking 16.04 drivers wireless iwlwifi
Ubuntu 16.04 LTS 上的 Wifi 已连接但突然无法使用

一年多前，我在联想 Thinkpad 上安装了 Ubuntu 16.04 LTS，它似乎可以正常工作，但有时会出现问题。例如，我没有设法从“软件和更新”中“安装更新”，但由于我设法工作，所以直到今天都没有太多担心。所以现在，由于某种原因，WLAN 已连接，信号强度很高，但我无法访问互联网（无法浏览任何内容）。为了发布此错误报告，我尝试连接到以太网，然而，令我最惊讶的是，它虽然连接了，但却无法让我访问互联网（通过 USB 将这些东西从受影响的笔记本电脑复制到正常工作的笔记本电脑以发布此错误）。

我已经上网，尝试了一些方法，但没有用。这个页面（Ubuntu 中 Wi-Fi 已连接，但无法上网) 似乎提到了与我完全相同的问题，但是也没有帮助。

pooja@X1-Carbon-6:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.5 LTS"

pooja@X1-Carbon-6:~$ lspci
00:00.0 Host bridge: Intel Corporation Device 5914 (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Device 5917 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 08)
00:08.0 System peripheral: Intel Corporation Sky Lake Gaussian Mixture Model
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)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
00:1c.2 PCI bridge: Intel Corporation Device 9d12 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1)
00:1d.0 PCI bridge: Intel Corporation Device 9d18 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Device 9d4e (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)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (4) I219-V (rev 21)
02:00.0 Network controller: Intel Corporation Device 24fd (rev 78)
03:00.0 Wireless controller [0d40]: Intel Corporation Device 7360 (rev 01)
04:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a808
05:00.0 PCI bridge: Intel Corporation Device 15d3 (rev 02)
06:00.0 PCI bridge: Intel Corporation Device 15d3 (rev 02)
06:01.0 PCI bridge: Intel Corporation Device 15d3 (rev 02)
06:02.0 PCI bridge: Intel Corporation Device 15d3 (rev 02)
06:04.0 PCI bridge: Intel Corporation Device 15d3 (rev 02)
07:00.0 System peripheral: Intel Corporation Device 15d2 (rev 02)
3b:00.0 USB controller: Intel Corporation Device 15d4 (rev 02)

pooja@X1-Carbon-6:~$ sudo lshw -C network
  *-network               
       description: Wireless interface
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 78
       serial: b4:6b:fc:f5:d8:f9
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=4.19.0-041900rc4-lowlatency firmware=36.e91976c0.0 ip=192.168.178.42 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:158 memory:ee300000-ee301fff
  *-network
       description: Ethernet interface
       product: Ethernet Connection (4) I219-V
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 21
       serial: 8c:16:45:ad:03:a5
       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=0.1-4 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:155 memory:ee400000-ee41ffff

由于我的工作完全陷入停滞，我希望能够找到一种解决方法，但对于这种突然的惊喜我感到非常失望。

此致

答案1

这是 DNS 问题，已解决！

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