My old Netgear wireless router died over the weekend. Monday I got a D-Link DIR-615 HW E1 FW 5.00 NA and used the directions, a direct Ethernet connection, and the install CD to configure the router from my Windows 7 computer. I then moved the cable modem and router to a central room so both ends of the house can get a good signal, leaving no PC attached to the router. Now the Vista machine on one end of the house connects fine wireless and the XP machine on the other end (right next to the Windows 7 machine) connect fine wirelessly but the Windows 7 machine that I used to set up the router, which sees the network as well as a second one in the area, will not connect. It fails pretty much immediately and when I let it do it's little troubleshooting routine it says it is resolving (unspecified) issues and tests afterward and still fails, saying "Windows was unable to connect to Xxxxx network" - the one it connected to fine via a direct connection - though of course giving me no details. I've tried matching it to the connection parameters used by the XP machine right next to it as well as all the available variations, plus re-entering the password at least five times in case I had a typo. I notice when I run ipconfig on the Windows 7 machine I get "Media Disconnected" responses for everything so maybe it is a LAN card or configuration issue but I don't think I changed anything on the PC during the router setup. Does the machine not have or get an IP address until it connects to a network? Maybe the PC is still trying to use the ethernet connection, though it says it is disabled as there is a "cable disconnected"? Any other ideas or things to check, please?