Ubuntu 16.04 上的 Wifi 非常慢,几乎尝试了所有方法,但仍然无法正常工作

Ubuntu 16.04 上的 Wifi 非常慢,几乎尝试了所有方法,但仍然无法正常工作

我有一台戴尔 Latitude E6400 笔记本电脑,我的 wifi 速度非常慢,加载某些页面需要很长时间,更不用说视频了。同一 wifi 上的所有其他设备都有适当的互联网速度

这是输出

sudo lshw -C network

 *-network
        description: Wireless interface
        physical id: 2
        logical name: wlan0
        serial: 00:23:4d:b3:4d:ba
        capabilities: ethernet physical wireless
        configuration: broadcast=yes driver=b43 driverversion=4.10.0-30-generic firmware=666.2 ip=192.168.0.31
 link=yes multicast=yes wireless=IEEE 802.11

iwconfig 的输出:

 enp0s25   no wireless extensions.

 wlan0     IEEE 802.11  ESSID:"UPC6750748"  
           Mode:Managed  Frequency:2.462 GHz  Access Point: FC:B4:E6:8D:C2:D0   
           Bit Rate=54 Mb/s   Tx-Power=20 dBm   
           Retry short limit:7   RTS thr:off   Fragment thr:off
           Power Management:off
           Link Quality=59/70  Signal level=-51 dBm  
           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
           Tx excessive retries:229  Invalid misc:320   Missed beacon:0

 lo        no wireless extensions.

lsusb 的输出:

 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 
 Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub 
 Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub 
 Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub 
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 
 Bus 005 Device 002: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor 
 Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub 
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub 
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

rfkill 列出全部

0: phy0: Wireless LAN   
        Soft blocked: no
        Hard blocked: no 
1: dell-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: no

请帮忙。我尝试了网上很多建议,但还是没有改善。

我也阅读了有关使用 wicd 的提示,但它没有显示我的无线连接......

输出请参阅lspci-knn| grep Net-A3

 00:19.0 Ethernet controller [0200]: Intel Corporation 82567LM Gigabit
 Network Connection [8086:10f5] (rev 03)    Subsystem: Dell 82567LM
 Gigabit Network Connection [1028:0233]     Kernel driver in use: e1000e
    Kernel modules: e1000e 00:1a.0 USB controller [0c03]: Intel
 Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937]
 (rev 03)
 -- 0c:00.0 Network controller [0280]: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01)  Subsystem: Dell Wireless 1510 Wireless-N WLAN Mini-Card [1028:000d]     Kernel
 driver in use: b43-pci-bridge  Kernel modules: ssb

答案1

我有完全相同的设置(BCM4322 和 1510 Wireless-N WLAN Mini-Card),并且遇到了完全相同的问题。

我搜索了一下,到目前为止似乎有帮助的是重新安装相关的内核模块:

sudo apt-get install --reinstall bcmwl-kernel-source

我希望这有帮助。

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