Again I am having this problem with dd-wrt as well as stock linksys firmware http://www.linksysinfo.org/forums/showthread.php?t=57625. The problem seems to occur when I happen to lose power. Although it also has happened without warning ie disconnects from the ISP side. The router with dd-wrt on it had problems with SP1 and pre SP2 build of the stnd flashes. I then flashed the router with the Linksys stock firmware and it seemed to be good for 24+ hours. This was after I cloned the MAC ID for one of the computers here. Then the power went out and the router came back fine but it then went down again and would not connect without power cycling the router. Router WAN port is coming off a modem inside a TVoIP box that I am unable to configure. I am currently running tomato firmware on another wrt5gl v1.1 router and it has been running for 7 hours now.