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无线问题 (broadcom)

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无线问题 (broadcom)

我可以连接到无线，但无法连接到互联网。

我尝试过但没有帮助的方法：

  • 距离路由器越来越近
  • 格式化
  • 重新安装固件

一些诊断细节：

  • cat /etc/resolv.conf

    # Generated by NetworkManager
nameserver 94.143.178.17
nameserver 195.167.65.194

  • nm-tool

     NetworkManager Tool

`State: connected (global)

- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            tg3
  State:             unavailable
  Default:           no
  HW Address:        00:1D:72:28:DF:B9

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off


- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            b43
  State:             disconnected
  Default:           no
  HW Address:        00:1F:3A:56:5E:73

  Capabilities:

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

  Wireless Access Points 
    EFESSOU GEUSEIS: Infra, 00:05:59:0B:6C:37, Freq 2437 MHz, Rate 54 Mb/s, Strength     54


- Device: ttyUSB0  [Cosmote Default] -------------------------------------------
  Type:              Mobile Broadband (GSM)
  Driver:            option1
  State:             connected
  Default:           yes

  Capabilities:

  IPv4 Settings:
    Address:         31.152.209.75
    Prefix:          32 (255.255.255.255)
    Gateway:         10.64.64.64

    DNS:             94.143.178.17
    DNS:             195.167.65.194

  • sudo iwlist scan

    lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

irda0     Interface doesn't support scanning.

wlan0     Scan completed :
    Cell 01 - Address: 00:05:59:0B:6C:37
              Channel:6
              Frequency:2.437 GHz (Channel 6)
              Quality=42/70  Signal level=-68 dBm  
              Encryption key:off
              ESSID:"EFESSOU GEUSEIS"
              Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
              Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                        36 Mb/s; 48 Mb/s; 54 Mb/s
              Mode:Master
              Extra:tsf=000000333425f1b6
              Extra: Last beacon: 784ms ago
              IE: Unknown: 000F45464553534F552047455553454953
              IE: Unknown: 010582848B962C
              IE: Unknown: 030106
              IE: Unknown: 2A0100
              IE: Unknown: 32080C1218243048606C

wwan0     Interface doesn't support scanning.

ppp0      Interface doesn't support scanning.

  • cat /var/lib/NetworkManager/NetworkManager.state

    [main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

  • cat /etc/network/interfaces

    auto lo
iface lo inet loopback

  • lsmod | grep b43

    b43                   318816  0 
mac80211              272785  1 b43
cfg80211              172392  2 b43,mac80211
ssb                    50682  1 b43

  • route -n

    Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.64.64.64     0.0.0.0         UG    0      0        0 ppp0
10.64.64.64     0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 ppp0

我在宽带连接上网时运行了这些代码。如果您需要在我连接无线网络（无线网络有问题）时执行任何命令，请告诉我。

答案1

您包含的 iwlist 和 lsmod 的输出表明您的计算机已识别并可以使用无线网卡，因此不太可能是驱动程序问题。

根据您的路由表，您的计算机似乎设置为通过 ppp0 接口而不是 wlan0 接口发送所有互联网流量。请尝试拔下/禁用您已配置的任何调制解调器或 VPN，然后尝试再次连接到无线。

答案2

您的有线运营商（无论是哪家）已关闭。您必须将其激活。

echo on | sudo tee /sys/class/net/eth0/device/power/control

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