Before I explain the problem, thank you to anyone willing to help me sort out this mess; I have been at it for hours and have come up with nothing. About 1.5 years ago I purchased the Linksys PLK300 Powerline Adapters to give internet access to an Xbox 360 and PC in a room where wireless connection was slightly cold. They worked exceptionally up until just last week. I was surfing the web when I noticed that the internet went down and it has been down ever since. The adapters are properly plugged in, it appears as if nothing is wrong with them- LEDs still flashing, and the Xbox and Computer recognize their presence, but they won't connect to the web.The router still sends out a wireless signal, strong as ever. I have tried restarting both modem and router, I have checked to see if the MAC addresses are conflicting, I have made sure that there is no security to mess it up, and I have also made sure that any IP address can access my network. I have done just about everything I can think of to make this work. Before anyone delays their ideas waiting for an IPCONFIG /ALL post from me, I have already made sure DHCP and Auto Configuration are enabled and I have no idea what ipconfig /renew and ipconfig /release (or whatever it was) do, but I did that too. The computer from the offline room gives me an IP address of 169.254, indicating no connection to DHCP (not totally sure about the DHCP but it definitely means no connection.) I have both adapters plugged straight into wall sockets, not on the same socket as the modem/ router and am getting frustrated without the internet in this room, so if you have any idea what could possibly be the problem I would greatly appreciate it.