好多朋友总问自己的ADSL连不上网是怎么回事，其实看看错误代码，很快便可以解决，下面把代码的解释附上：
602 The port is already open.
This error usually occurs under Windows 95/98 and indicates that there is no dial-up adapter present in the Network applet of the Control Panel. To resolve the problem, remove WinPoET, add a dial-up adapter, and then restart the PC.
You may also receive this error if you attempt to connect when WinPoET is already connected.
602错误，端口已经打开。原因：计算机上没有安装拨号网络，或连接已经连接。
