為何無法連線? 電腦上顯示"limited and no connectivity"

many many reasons, such as network card failure, modem busy, improper internet settings,....

simply try to use dhcp
i.e. In My Network Places-->View network connections-->right click Local Area Connection, then click Properties.
In General--> Internet Protocol(TCP/IP), click Properties, make sure the (Obtain an IP address automatically) is selected.

Also
Launch IE, in Tools-->Connections-->LAN Settings
uncheck the box(Use a proxy server for your LAN)


If both the above methods fail, you may ned try more methods
go here to take a look
http://support.microsoft.com/kb/326155/en-us


hope this can help you

2007-12-05 15:12:49 補充：
Also try reboot the modem and/or replace the LAN cable

應該是DHCP問題, 試一試Disable個區域連線再Enable.

會唔會係你未裝返個driver?
我只用過i-cable同netvigator，唔知道其他ISP要唔要咁樣，如果你係用呢兩個ISP既就要裝返個driver先至上倒網嘎。

in chinese it is
"沒有動力或不能連x"
i think your modam or cable doesn't match......