最近，我在 Ubuntu 中遇到了 Wi-Fi 问题，因此重新安装了 Ubuntu 16.04。即使重新安装后，Wi-Fi 仍显示“Wifi 已禁用”错误。
我点击了这个链接：在基于 Ubuntu 15.04 的发行版上安装 Ralink RT3290 Wi-Fi 驱动程序
&下载并安装此驱动程序：RT3290_u16 驱动程序
我的 wifi 最终被启用了，但无法扫描任何 wifi 网络。
我运行此命令时没有扫描结果：
sudo iwlist rename3 scan
rename3 是我的无线的逻辑名称。
以下是输出
sudo lshw -C network
*-network
description: Wireless interface
product: RT3290 Wireless 802.11n 1T/1R PCIe
vendor: Ralink corp.
physical id: 0
bus info: pci@0000:08:00.0
logical name: rename3
version: 00
serial: 9c:d2:1e:4e:e0:29
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=RALINK WLAN latency=0 multicast=yes wireless=Ralink STA
resources: irq:18 memory:b5510000-b551ffff
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eno1
version: 08
serial: a0:2b:b8:49:1c:cf
size: 10Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8106e-2_0.0.1 04/23/13 ip=10.8.40.55 latency=0 link=yes multicast=yes port=MII speed=10Mbit/s
resources: irq:43 ioport:4000(size=256) memory:b5404000-b5404fff memory:b5400000-b5403fff
提前感谢您的宝贵帮助！