我是 Ubuntu 新手，在 Wifi 连接方面遇到了一些问题。我搜索了这个网站来寻找解决方法，但没有任何帮助（只是重新安装）。我的无线网卡内置在主板上http://www.asus.com/Motherboards/Z87IPRO
问题是，我无法访问一些网页，比如 Facebook、我的 Google 帐户等。但例如新闻页面和 YouTube 却运行如梦。我对 Ubuntu 不是很熟悉，所以我不知道从哪里开始。
这台计算机运行的是 Windows 8.1 和 Ubuntu 14.04。当我运行 Windows 时，我的互联网没有问题。
我做了 ping 测试 (pingtest.net)，没有出现任何数据包丢失。我还做了速度测试，下载速度不错，但上传速度绝对不行……它尝试上传一分钟左右，然后显示消息：上传测试错误。
有时所有页面都无法运行，或者运行速度非常慢……
在终端中执行 lsusb 和 lspci 命令并得到以下输出：
PC:~$ lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 005: ID 1532:001f Razer USA, Ltd
Bus 005 Device 002: ID 046d:c326 Logitech, Inc.
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 0b05:17d0 ASUSTek Computer, Inc.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lspci
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 05)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5)
00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #5 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation Z87 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 670] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1)
03:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)
04:00.0 USB controller: ASMedia Technology Inc. Device 1142
谢谢！