Having problems with your wireless router? Check out the WiFi Router Trouble Shooting Guide at DV Hardware to fix your problems. Here's one of the tips:
"Reset your router ? Some times after many changes and many restarts your routers configuration files can get messed up. Even after you made many changes via your routers web interface they won?t stick. So you might need to reset you router by taking a paper clip and pressing the button in back of the router for about thirty seconds.."