提供一下网卡的型号吧。

方法：

ctrl+alt+t 打开终端，输入下面的命令

$ lspci

然后把输出贴出来。

qiang@qiang-PC:$ lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce 610M] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev ff)
03:00.0 Network controller: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
04:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetLink BCM57785 Gigabit Ethernet PCIe (rev 10)
04:00.1 SD Host controller: Broadcom Inc. and subsidiaries BCM57765/57785 SDXC/MMC Card Reader (rev 10)
04:00.2 System peripheral: Broadcom Inc. and subsidiaries BCM57765/57785 MS Card Reader (rev 10)
04:00.3 System peripheral: Broadcom Inc. and subsidiaries BCM57765/57785 xD-Picture Card Reader (rev 10)
qiang@qiang-PC:$

抱歉

Qualcomm Atheros AR9287

高通无线网卡驱动固件应该是在 linux-firmware 包里提供的，如果没有搜索到 wifi，试试重新加载驱动

sudo rmmod ath9k_htc
sudo modprobe ath9k_htc

AR9287是比较老的网卡了。

根据这个网站

https://linux-hardware.org/index.php?id=pci:168c-002e-11ad-6603

这个驱动是由ath9k这个模块驱动的。可以先用下面的命令来检查是否加载了驱动：

$ lsmod |grep ath9k

如果没有输出，就用下面的命令来加载驱动：

$sudo modprobe ath9k

加载成功后看是否能正常使用。：）