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为什么我的ubuntu13.04无法连接wifi？

tag-icon • tag-icon wireless 13.04
为什么我的ubuntu13.04无法连接wifi？

我的电脑一分钟前才可以连接，但重启后它可以找到 WiFi 信号并知道密码，但无法连接。它在 WiFi 信号范围内，但就是拒绝连接。请告诉我您可能需要的任何其他信息。感谢您的帮助。

我输入这些命令后，我的 WiFi 就立即连接上了。你能告诉我我的连接是否仍然不稳定吗？

lspci | grep network没有输出

iwconfig" yeilds
wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=14 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

lo        no wireless extensions.

eth0      no wireless extensions.



nm-tool" yeilds
NetworkManager Tool

State: disconnected

- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            ath9k
  State:             disconnected
  Default:           no
  HW Address:        78:DD:08:DF:9A:76

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points 
    Azcasa1:         Infra, C8:D7:19:E3:B1:DA, Freq 2462 MHz, Rate 54 Mb/s, Strength 35 WPA WPA2
    airplane:        Infra, 00:16:B6:0D:A1:1A, Freq 2437 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
    Ranger:          Infra, C4:3D:C7:56:BA:A8, Freq 2462 MHz, Rate 54 Mb/s, Strength 30 WPA
    guest:           Infra, 1C:E6:C7:0C:DF:C0, Freq 2412 MHz, Rate 54 Mb/s, Strength 25
    MOTOROLA-3F559:  Infra, 20:10:7A:DC:E5:3E, Freq 2462 MHz, Rate 54 Mb/s, Strength 19 WPA2
    Exiga:           Infra, 10:9F:A9:AC:3F:44, Freq 2412 MHz, Rate 54 Mb/s, Strength 54 WPA WPA2
    myqwest0382:     Infra, 62:39:44:58:13:31, Freq 2437 MHz, Rate 54 Mb/s, Strength 24 WPA WPA2
    myqwest0381:     Infra, A8:39:44:58:13:34, Freq 2437 MHz, Rate 54 Mb/s, Strength 20 WEP


- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        54:42:49:2A:B4:E7

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off

答案1

一次运行一行命令，只需复制并粘贴以确保准确性，通常可以使该驱动程序更好地连接。

你只有一个信号足够强的网络可以连接，而且信号勉强够强，myqwest0382所以我希望这就是您要连接的网络。

echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf

sudo modprobe -rfv ath9k

sudo modprobe -v ath9k

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