我買左部linksys 點解去到網絡側試個part會fail?

You might have a static IP from your ISP. The routher will not be able to get the static IP address from your internet modem. You will have to enter it manually into the routher.

如果你用ADSL, PPPoE，你要輸入 user name and password, otherwise 佢入唔到個網絡咪 failed 囉。
首先搵個 ip 出來，如 192.168.xxx.xxx
放在 IE 的 address 到，自然會入到 lynksys 的 setup ，跟住指示輸入 user name and password，就應該OK 啦。