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东芝 Satalite M-55 更新 14.04 后 WiFi 速度超慢

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东芝 Satalite M-55 更新 14.04 后 WiFi 速度超慢

我使用 Lubuntu 14.04 更新了我的 Toshiba Satalite M-55 笔记本电脑，但更新后我的 WiFi 速度非常慢甚至没有。当我输入 $ iwconfig 时，我得到的结果是：

iwconfig

wlan0     IEEE 802.11bg  ESSID:"gogetter"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:25:9C:D9:FC:74   
          Bit Rate=11 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-38 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:3  Invalid misc:169   Missed beacon:0

lo        no wireless extensions.

eth0      no wireless extensions.

但是 lspci 看到这个：

lspci

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD/ATI] RC410 Host Bridge (rev 01)
00:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RC4xx/RS4xx PCI Bridge [int gfx]
00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RC4xx/RS4xx PCI Express Port 1
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB Host Controller (rev 80)
00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB Host Controller (rev 80)
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB2 Host Controller (rev 80)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 SMBus Controller (rev 81)
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 IDE Controller (rev 80)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 PCI-ISA Bridge (rev 80)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 PCI-PCI Bridge (rev 80)
00:14.5 Multimedia audio controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB400 AC'97 Audio Controller (rev 80)
00:14.6 Modem: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB400 AC'97 Modem Controller (rev 80)
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RC410M [Mobility Radeon Xpress 200M]
04:02.0 Ethernet controller: Qualcomm Atheros AR2413/AR2414 Wireless Network Adapter [AR5005G(S) 802.11bg] (rev 01)
04:04.0 CardBus bridge: ENE Technology Inc CB1410 Cardbus Controller (rev 01)
04:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter (rev 10)

它与 Zubuntu 12.04 配合良好。您能帮忙吗？谢谢！

答案1

做：

echo "options ath5k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath5k.conf
sudo modprobe -rfv ath5k
sudo modprobe -v ath5k

如果您有该选项，请将加密更改为 wpa2 (CCMP)(AES) 而不是 (TKIP)，这样效果会最好。

将频道改为 1 或 11，通常效果最好。保存路由器配置，然后重新启动路由器并拔下有线连接。

在网络管理器中设置您的无线设置以匹配屏幕截图。DNS 设置IPV6 设置

然后重新启动。

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