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16.04 版 Wifi 连接不断断开，有时尝试 10 次以上后仍无法连接网络

tag-icon • tag-icon networking 16.04 wireless intel-wireless
16.04 版 Wifi 连接不断断开，有时尝试 10 次以上后仍无法连接网络

这可能是 Wifi 天线的问题吗？连接天线和无线网卡的其中一根电线坏了，我自己修好了。

以下是 ifconfig 和 iwconfig 的输出：

是否配置

enp5s0    Link encap:Ethernet  HWaddr 78:2b:cb:ed:d5:8b  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:23505 errors:0 dropped:0 overruns:0 frame:0
          TX packets:23505 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:1938591 (1.9 MB)  TX bytes:1938591 (1.9 MB)

wlp9s0    Link encap:Ethernet  HWaddr bc:77:37:81:48:a9  
          inet addr:192.168.1.5  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::ff76:7b18:f50b:3817/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:209670 errors:0 dropped:0 overruns:0 frame:0
          TX packets:151556 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:246110201 (246.1 MB)  TX bytes:20791045 (20.7 MB)

配置：

lo        no wireless extensions.

enp5s0    no wireless extensions.

wlp9s0    IEEE 802.11bg  ESSID:"Ravit"  
          Mode:Managed  Frequency:2.447 GHz  Access Point: B8:C1:A2:26:C9:7C   
          Bit Rate=24 Mb/s   Tx-Power=15 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=69/70  Signal level=-41 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:2671   Missed beacon:0

lspci -knn | grep Net -A3

09:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] [8086:008a] (rev 34)
    Subsystem: Intel Corporation Centrino Wireless-N 1030 BGN [8086:5325]
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi

答案1

在终端中运行

sudo tee /etc/modprobe.d/iwlwifi-opt.conf <<< "options iwlwifi 11n_disable=8"

然后重新启动。

如果这不能解决问题，请执行以下操作：

sudo tee /etc/modprobe.d/iwlwifi-opt.conf <<< "options iwlwifi 11n_disable=1"

但正如您所说，这可能是您的天线硬件问题。

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