Go to Start Menu->Connect To->Show Network Connections
select 'Properties' from the 'Local Area Network' context menu (right mouse click)
Under 'Configuration' select the TCP/IP protocol for the ethernet system, and click properties
Under 'IP Address' select 'Obtain an IP address automatically'
select 'Obtain DNS server address automatically'
after doing that renew and release your ip address and see if you can get the router access page to work if not let me know