首先查看无线网卡型号

alair@zb14:~$ lspci|grep less
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)

搜索Inter相关固件 ​ alair@zb14:~$ apt-cache search iwlwifi firmware-iwlwifi - Binary firmware for Intel Wireless cards

安装之 ​ alair@zb14:~$ apt-get install firmware-iwlwifi

重启完事儿！