☰

WiFi已连接到路由器，但没有互联网连接

tag-icon • tag-icon wireless internet-connection intel-wireless
WiFi已连接到路由器，但没有互联网连接

我刚买了一台新笔记本，ThinkPad Edge E530，并在其上安装了 Ubuntu。我对 Ubuntu 还不太熟悉。在同一台运行 Windows 7 的笔记本电脑上，Wi-Fi 连接工作正常。以太网连接在 Win7 和 Ubuntu 上都有效。只有 Ubuntu 上的 Wi-Fi 不起作用；它连接到 Wi-Fi 接入点，但我无法访问互联网。

我的无线网卡是 Intel Centrino Wireless-N 2230。什么可以解决这个问题？

编辑：

ifconfig -a
eth0      Link encap:Ethernet  HWaddr b8:88:e3:30:72:34  
      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)
      Interrupt:43 Base address:0x8000 

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:16436  Metric:1
      RX packets:163 errors:0 dropped:0 overruns:0 frame:0
      TX packets:163 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0 
      RX bytes:10124 (10.1 KB)  TX bytes:10124 (10.1 KB)

usb0      Link encap:Ethernet  HWaddr 02:15:e0:ec:01:00  
      UP BROADCAST RUNNING 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)

wlan0     Link encap:Ethernet  HWaddr 68:5d:43:43:71:e1  
      inet addr:192.168.2.101  Bcast:192.168.2.255  Mask:255.255.255.0
      inet6 addr: fe80::6a5d:43ff:fe43:71e1/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:40 errors:0 dropped:0 overruns:0 frame:0
      TX packets:220 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:2801 (2.8 KB)  TX bytes:26230 (26.2 KB)

route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.2.1     0.0.0.0         UG    0      0        0 wlan0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlan0
192.168.2.0     0.0.0.0         255.255.255.0   U     2      0        0 wlan0

cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.0.1

iwconfig
lo        no wireless extensions.

usb0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"SATELITE"  
      Mode:Managed  Frequency:2.462 GHz  Access Point: 00:1F:1F:8D:CC:08   
      Bit Rate=1 Mb/s   Tx-Power=16 dBm   
      Retry  long limit:7   RTS thr:off   Fragment thr:off
      Power Management:off
      Link Quality=60/70  Signal level=-50 dBm  
      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
      Tx excessive retries:93  Invalid misc:243   Missed beacon:0

eth0      no wireless extensions.

答案1

可能是驱动程序中的电源管理存在问题。

尝试使用网络指示器禁用并重新启用无线。同时尝试将笔记本电脑连接到电源。

看：https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1038373

查看与您的驱动程序相关的其他错误报告：https://bugs.launchpad.net/ubuntu/+source/linux?field.searchtext=iwlwifi

相关内容