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使用 Atheros AR9285 时，无线每隔几分钟就会关闭一次

tag-icon • tag-icon 12.04 wireless atheros
使用 Atheros AR9285 时，无线每隔几分钟就会关闭一次

我的 Acer Iconia tab w500 运行 Ubuntu 12.04，其无线网每隔几分钟就会打开和关闭。这会影响我无线网络上的所有其他设备，包括 Windows 7 PC、MacBook 和 iPod touch。当我关闭 Ubuntu 时，网络可以正常工作。我之前运行 Ubuntu 11 时也遇到过同样的问题，我希望升级可以解决它，但并没有。当我去图书馆或咖啡店时，互联网运行良好，不会关闭。我真的很喜欢我的 Acer 平板电脑上的 Ubuntu，希望我不必回到 Windows，但这是一个相当疯狂的问题！如果可以，请帮忙，或者给我一个类似的帖子。我是一名设计师，不是程序员，所以儿童谈话很有帮助。非常感谢。

我在终端中运行了一些测试，可能会对比我更聪明的人有所帮助：

1. sudo lshw -类网络

  *-network               
   description: Wireless interface 
   product: AR9285 Wireless Network Adapter (PCI-Express) 
   vendor: Atheros Communications Inc. 
   physical id: 0 
   bus info: pci@0000:01:00.0 
   logical name: wlan0 
   version: 01 
   serial: e4:d5:3d:94:f8:05 
   width: 64 bits 
   clock: 33MHz 
   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless 
   configuration: broadcast=yes driver=ath9k driverversion=3.2.0-24-generic      
   firmware=N/A latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn 
   resources: irq:17 memory:90000000-9000ffff 
   *-network 
   description: Ethernet interface 
   physical id: 1 
   logical name: eth0 
   serial: e8:40:f2:31:c3:33 
   size: 10Mbit/s 
   capacity: 100Mbit/s 
   capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd   
   autonegotiation 
   configuration: autonegotiation=on broadcast=yes driver=asix driverversion=08- 
   Nov-2011 duplex=half firmware=ASIX AX88772 USB 2.0 Ethernet link=no  
   multicast=yes port=MII speed=10Mbit/s

2. lspci

    00:00.0 Host bridge: Advanced Micro Devices [AMD] Family 14h Processor Root Complex 
    00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Wrestler [Radeon HD 6290] 
    00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI Wrestler HDMI Audio [Radeon HD 6250/6310] 
    00:05.0 PCI bridge: Advanced Micro Devices [AMD] Family 14h Processor Root Port 
    00:11.0 SATA controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] 
    00:12.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 
    00:12.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller 
    00:13.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 
    00:13.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller 
    00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller (rev 42) 
    00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) (rev 40) 
    00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC host controller (rev 40) 
    00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge (rev 40) 
    00:16.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 
    00:16.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller 
    00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 0 (rev 43) 
    00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 1 
    00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 2 
    00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 3 
    00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 4 
    00:18.5 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 6 
    00:18.6 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 5 
    00:18.7 Host bridge: Advanced Micro Devices [AMD] Family 12h/14h Processor Function 7 
    01:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

3. rfkill 列出全部

    0: phy0: Wireless LAN 
        Soft blocked: no 
        Hard blocked: no 
    2: acer-wireless: Wireless LAN 
        Soft blocked: no 
        Hard blocked: no 
    3: acer-bluetooth: Bluetooth 
        Soft blocked: yes 
        Hard blocked: no 
    12: hci0: Bluetooth 
        Soft blocked: yes 
        Hard blocked: no

请告诉我您还需要什么，谢谢！

答案1

我关注了此主题：如何修复 Ubuntu 12.04 中的无线问题

而且效果很好。问题解决了。问题不在于电脑，而在于 Ubuntu 不支持该无线驱动程序：AR9285 无线网络适配器。按照上面的链接，我所做的就是：

创建一个新文件 /etc/modprobe.d/ath9k.conf：

sudo nano /etc/modprobe.d/ath9k.conf

添加以下行：

options ath9k nohwcrypt=1'

答案2

我在另一个帖子上读到了这一点，到目前为止它对我很有用......

  1. 转到顶部的无线图标
  2. 去编辑连接
  3. 转到无线，单击您的网络，然后编辑。
  4. 转到无线安全，然后重新输入您的无线安全通行证。
  5. 点击保存，就完成了。

对我有用，但我会随时向您通报进展情况。

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