我在使用 Ubuntu 12.04 连接互联网时遇到问题,
我尝试使用我的 Lenovo T530 连接到我的家庭路由器/ap。其他所有设备都可以在 WiFi 上正常工作。此外,我的 T530 在除我的 WiFi 之外的所有其他 WiFi 上都可以正常工作。这不是路由器问题,我已经检查了三遍。
我附上了两个连接的数据。一个显示来自“BlackXs”的数据,这是我的 WiFi,它不起作用。另一个屏幕截图是在几秒钟后在同一设备上拍摄的,在另一个名为“arbo”(我哥哥在阁楼上的连接)的 WiFi 上工作正常。
有人可以解释或提供解决方案吗?
工作:
root@t530:/home/augustin# ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr a4:4e:31:4f:ac:4c
inet addr:192.168.1.8 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::a64e:31ff:fe4f:ac4c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13557 errors:0 dropped:1 overruns:0 frame:0
TX packets:18810 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11021816 (11.0 MB) TX bytes:1781840 (1.7 MB)
root@t530:/home/augustin# iwconfig wlan0
wlan0 IEEE 802.11abgn ESSID:"arbo"
Mode:Managed Frequency:2.462 GHz Access Point: 7A:D1:5E:12:36:D1
Bit Rate=1 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=28/70 Signal level=-82 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:5 Invalid misc:8 Missed beacon:0
root@t530:/home/augustin# ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_req=1 ttl=64 time=49.5 ms
64 bytes from 192.168.1.1: icmp_req=2 ttl=64 time=1.74 ms
64 bytes from 192.168.1.1: icmp_req=3 ttl=64 time=99.2 ms
^C
不工作:
root@t530:/home/augustin# ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr a4:4e:31:4f:ac:4c
inet addr:192.168.0.101 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::a64e:31ff:fe4f:ac4c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18396 errors:0 dropped:1 overruns:0 frame:0
TX packets:24330 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:14264964 (14.2 MB) TX bytes:3038114 (3.0 MB)
root@t530:/home/augustin# iwconfig wlan0
wlan0 IEEE 802.11abgn ESSID:"BlackXs"
Mode:Managed Frequency:2.437 GHz Access Point: 1C:7E:E5:01:0C:F4
Bit Rate=65 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=70/70 Signal level=-26 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:13 Invalid misc:3 Missed beacon:0
root@t530:/home/augustin# ping 192.168.0.1
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
^C
--- 192.168.0.1 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2014ms
答案1
这里描述的解决方案非常有效http://www.askubuntu.com/a/279549/261002