我可以连接到网络，但是无法访问互联网。
我尝试过几种解决方案，例如：
- 将内核更新到最新版本。
- 在 wifi 设置中设置一个 DNS 列表（como 8.8.8.8）。
- 设置将属性 wifi.scan-rand-mac-address 设置为 no（实际上，我已经以这种方式工作了）。
当我使用 Live CD 时，我可以访问。一段时间后它停止工作。由于我并不经常使用 wifi，所以我不知道它何时停止工作。
在浏览器中，我得到了DNS_PROB_START然后DNS_PROBE_FINISHED_NO_INTERNET。
$ sudo lshw-类网络
descrição: Interface sem fio
produto: QCA9377 802.11ac Wireless Network Adapter
fabricante: Qualcomm Atheros
ID físico: 0
informações do barramento: pci@0000:02:00.0
nome lógico: wlp2s0
versão: 31
serial: 5c:c9:d3:8c:87:ff
largura: 64 bits
clock: 33MHz
capacidades: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuração: broadcast=yes driver=ath10k_pci driverversion=4.18.0-041800-generic firmware=WLAN.TF.1.0-00002-QCATFSWPZ-5 ip=10.116.199.144 latency=0 link=yes multicast=yes wireless=IEEE 802.11
recursos: irq:129 memória:a1000000-a11fffff
$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (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)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (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 9d4e (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (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: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 31)
$ cat /etc/issue.net; uname -ar
Ubuntu 18.04.1 LTS
Linux magneto 4.18.0-041800-generic #201808122131 SMP Sun Aug 12 21:33:20 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
$ 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
$ dmesg
[ 6062.371799] wlp2s0: disconnect from AP 0e:8d:cb:6f:63:bc for new auth to 0e:8d:cb:6f:71:01
[ 6062.378165] wlp2s0: authenticate with 0e:8d:cb:6f:71:01
[ 6062.413159] wlp2s0: send auth to 0e:8d:cb:6f:71:01 (try 1/3)
[ 6062.413950] wlp2s0: authenticated
[ 6062.421667] wlp2s0: associate with 0e:8d:cb:6f:71:01 (try 1/3)
[ 6062.423506] wlp2s0: RX ReassocResp from 0e:8d:cb:6f:71:01 (capab=0x1011 status=0 aid=6)
[ 6062.427281] wlp2s0: associated
[ 6062.427355] wlp2s0: Limiting TX power to 30 (30 - 0) dBm as advertised by 0e:8d:cb:6f:71:01
[ 6062.427564] ath: EEPROM regdomain: 0x804c
[ 6062.427566] ath: EEPROM indicates we should expect a country code
[ 6062.427567] ath: doing EEPROM country->regdmn map search
[ 6062.427568] ath: country maps to regdmn code: 0x3b
[ 6062.427570] ath: Country alpha2 being used: BR
[ 6062.427571] ath: Regpair used: 0x3b
[ 6062.427573] ath: regdomain 0x804c dynamically updated by country element
[ 6941.786152] perf: interrupt took too long (3152 > 3130), lowering kernel.perf_event_max_sample_rate to 63250
$ ls -al /etc/resolv.conf
lrwxrwxrwx 1 root root 24 jul 26 14:09 /etc/resolv.conf -> /run/connman/resolv.conf
$ ping -c3 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms
$ cat /etc/resolv.conf
# Generated by Connection Manager
nameserver ::1
nameserver 127.0.0.1
$ systemctl 列表单元文件 输出在这里
$ 路线
Tabela de Roteamento IP do Kernel
Destino Roteador MáscaraGen. Opções Métrica Ref Uso Iface
default _gateway 0.0.0.0 UG 100 0 0 enp1s0
10.116.199.0 0.0.0.0 255.255.255.0 U 100 0 0 enp1s0
感谢收听