XPPro with Linksys WRT54G v4 worked fine with a DSL connection. Unplugged it and computer for a week. Returned no internet connection. Reinstalled config file. Still message "TCP/IP is not established for the connection-cannot proceed." Suggestions? BTW. I can still use DSL by connecting directly though my PC Ethernet card MAC address but not through the router MAC address which had been working just fine. Thanks.