Easylink Advisor Wizard…Currently not connected to the internet

I used Easylink Advisor Wizard to install my WRT54G Wireless-G router, after the message “configuring your computer” for a few seconds then pop a new message “Currently not connected to the internet”

How come I’m not connected to the internet coz while Installing the said router I’m also surfing arround and checking my mails….please somebody help…