输入 sudo rfkill list 查看网卡和无线网卡状态
0: phy0: Wireless LAN
Soft blocked: no Hard blocked: yes输入sudo rfkill unblock all解锁无线网卡命令
0: phy0: Wireless LAN
Soft blocked: no Hard blocked: no我的电脑是联想的，我把无线网卡的开关关闭开启重试两遍就解决来
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输入 sudo rfkill list 查看网卡和无线网卡状态
0: phy0: Wireless LAN
Soft blocked: no Hard blocked: yes输入sudo rfkill unblock all解锁无线网卡命令
0: phy0: Wireless LAN
Soft blocked: no Hard blocked: no我的电脑是联想的，我把无线网卡的开关关闭开启重试两遍就解决来
转载于:https://my.oschina.net/u/205358/blog/121543