[已解决]ubuntu 16.04 有线网和无线网都连接不上，求助

[柠檬没我萌]

安装了win10和ubuntu16.04双系统，win10下有线网和无线网都正常，ubuntu下可以看到wired connection 1和多个Wifi名称，但都连接不上，求解决。。

代码： 全选

tao@tao:~$ uname -a
Linux tao 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

tao@tao:~$ sudo lshw -C network
  *-network               
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: enp5s0
       version: 0c
       serial: 40:8d:5c:50:0c:50
       size: 1Gbit/s
       capacity: 1Gbit/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 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
       resources: irq:31 ioport:c000(size=256) memory:fe200000-fe200fff memory:d2100000-d2103fff
  *-network
       description: Wireless interface
       product: AR93xx Wireless Network Adapter
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:06:00.0
       logical name: wlp6s0
       version: 01
       serial: 60:e3:27:07:f6:7e
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
       configuration: broadcast=yes driver=ath9k driverversion=4.4.0-31-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
       resources: irq:19 memory:fe100000-fe11ffff memory:fe120000-fe12ffff

[柠檬没我萌]

问题已解决，自己mark一下

电脑主板为技嘉GA-990FXA-UD3，开始时安装了r8168的驱动但依然联网失败，后来在主板BIOS下将IOMMU选项设置为ENABLED，解决了问题（虽然并不知道为什么）