首先查看无线网卡型号

[email protected]:~$ lspci|grep less
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)

搜索Inter相关固件 ​
[email protected]:~$ apt-cache search iwlwifi firmware-iwlwifi - Binary firmware for Intel Wireless cards

安装之 ​
[email protected]:~$ apt-get install firmware-iwlwifi

重启完事儿!