13.04 无法连接到特定 WiFi

13.04 无法连接到特定 WiFi

最近我将我的操作系统从 12.10 升级到了 13.04,运行良好。

我今天才遇到这个问题,但从早上起我就无法连接到某个 WiFi。我这里有两个 WiFi,我可以连接到另一个。

至于 WiFi,没有问题,因为其他使用 Windows 的人可以正常连接。我不知道如何解决这个问题?

注意 - 我已重新启动 WiFi 和系统两次以解决这个问题。

编辑以提供更多信息:

串行通信

[full lspci output can be found in revision 2 of this post]
....
04:00.0 Network controller: Intel Corporation WiFi Link 5100
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 03)
....

sudo lshw -c 网络

  *-network               
       description: Wireless interface
       product: WiFi Link 5100
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 00
       serial: 00:24:d6:43:c0:58
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.8.0-25-generic firmware=8.83.5.1 build 33692 ip=192.168.1.17 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:44 memory:f0500000-f0501fff
  *-network DISABLED
       description: Ethernet interface
       product: RTL8111/8168 PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:09:00.0
       logical name: eth0
       version: 03
       serial: b8:ac:6f:68:08:6d
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8168d-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:41 ioport:5000(size=256) memory:f0404000-f0404fff memory:f0400000-f0403fff memory:f0420000-f043ffff

消息

[ 2244.563918] wlan0: authenticate with 00:25:5e:17:6b:28
[ 2244.566162] wlan0: send auth to 00:25:5e:17:6b:28 (try 1/3)
[ 2244.768488] wlan0: send auth to 00:25:5e:17:6b:28 (try 2/3)
[ 2244.972143] wlan0: send auth to 00:25:5e:17:6b:28 (try 3/3)
[ 2245.175754] wlan0: authentication with 00:25:5e:17:6b:28 timed out
[ 2264.745062] wlan0: authenticate with 00:25:5e:17:6b:28
[ 2264.746376] wlan0: direct probe to 00:25:5e:17:6b:28 (try 1/3)
[ 2264.949654] wlan0: direct probe to 00:25:5e:17:6b:28 (try 2/3)
[ 2265.153340] wlan0: direct probe to 00:25:5e:17:6b:28 (try 3/3)
[ 2265.356923] wlan0: authentication with 00:25:5e:17:6b:28 timed out

答案1

看起来这个硬件的 Wi-Fi N 配置出了问题。

请尝试:

    sudo modprobe -r iwlwifi
    sudo modprobe iwlwifi 11n_disable=1

现在尝试重新连接,如果有帮助,请按照以下步骤操作

  1. 查看/etc/modprobe.d是否存在类似的文件intel-5100-iwlwifi-disable11n.conf,然后编辑该文件

    sudo gedit /etc/modprobe.d/<filename_here>

    编辑以下行:

    options iwlwifi 11n_disable=1
    

    options iwlwifi 11n_disable=0
    

保存并重新启动。

  1. 如果不存在文件,则创建新文件

    gksudo gedit /etc/modprobe.d/iwlwifi.conf
    

    添加新行:

    options iwlwifi 11n_disable=1
    

保存并重新启动。

可能相关:

Intel 5100 没有无线 N

无线功能无法与 Intel 5100 无线网卡配合使用

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