我的计算机的 WiFi 出现了一些问题。
几分钟后（随机时间），互联网停止工作，但我仍然可以看到其他可通过 WiFi 连接的网络，也可以访问可访问我的路由器的 IP。
这发生在 Ubuntu 16.04 和 18.04 中。
我在同一台机器上有一个 Windows 分区，但这种情况并没有发生。
这会是什么呢？
$ lspci -knn | grep Net -A3; rfkill list
03:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter [168c:003e] (rev 32)
Subsystem: Dell QCA6174 802.11ac Wireless Network Adapter [1028:0310]
Kernel driver in use: ath10k_pci
Kernel modules: ath10k_pci
04:00.0 Ethernet controller [0200]: Qualcomm Atheros QCA8171 Gigabit Ethernet [1969:10a1] (rev 10)
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
$ dmesg | grep ath10k
[ 4.924654] ath10k_pci 0000:03:00.0: enabling device (0000 -> 0002)
[ 4.926447] ath10k_pci 0000:03:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
[ 5.210002] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:03:00.0.bin failed with error -2
[ 5.210009] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/cal-pci-0000:03:00.0.bin failed with error -2
[ 5.210210] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/firmware-6.bin failed with error -2
[ 5.210214] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/firmware-5.bin failed with error -2
[ 5.211949] ath10k_pci 0000:03:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1028:0310
[ 5.211950] ath10k_pci 0000:03:00.0: kconfig debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[ 5.212294] ath10k_pci 0000:03:00.0: firmware ver WLAN.RM.2.0-00180-QCARMSWPZ-1 api 4 features wowlan,ignore-otp,no-4addr-pad crc32 75dee6c5
[ 5.277471] ath10k_pci 0000:03:00.0: board_file api 2 bmi_id N/A crc32 20d869c3
[ 5.866535] ath10k_pci 0000:03:00.0: htt-ver 3.26 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1
[ 5.959759] ath10k_pci 0000:03:00.0 wlp3s0: renamed from wlan0