I had the same problem and it was frustrating at first. You have to access your router and find the start ip address and the range and make sure dhcp is enabled. then plug the camera into one of the lan ports using the cable provided and plug the other end into the camera. then refresh the list of wireless clients in the router. Also if using a pre n router make sure that the broadcast is not mixed and is set to g mode. Only a g router will work or a router with g set to broadcast. i couldn't get the camera to work until i changed this setting. Anyways getting back to what i was talking about. When you see the list of clients you will see the camera listed on the client list. Write down the ip address example (192.168.1.108) and then on the computer (make sure you have another cable plugged into another lan port on the router and plugged into your computer) go into the dlink setup wizard. Press the search button the camera will appear on the list. Then click on the wizard and wait. It will say that the settings do not match there is an ip conflict or something to that matter do you want to change the settings click change settings and put the ip that the router configured. subnet mask is 255.255.255.0 and put the default gateway of the router which is usually 192.168.0.1 on most dlink routers but on the linksys i was using it was 192.168.1.1. After changing these settings it will let you into the camera configuration and after that you can unplug the cable and wait a minute or two. the green light should start blinking showing that the camera is connected to the router. Bingo your all done your camera is back to normal wireless function. You might have to unplug and reset the camera. If you have more than one camera make sure you unplug all the other camera's before configuring the first one. This will prevent any ip conflcts. Hope this helps you.

Had this problem. Opened up camera and found that the connector for the antenna was loose. When I plugged it back in, the camera began working again. (Although it was a pain getting the camera body back together, so good luck with that)

If you have tried all the steps above and still no luck guess what guy's and girl's i found out the little freaks problems lol do to its hot running processors on the cam i have found that it had some bad solder spots in it one being the reset button all i did was short the 2 ends together to reset it instead of holding the reset button and wala well what do you know it was working.so go on and touch those things together and get back to your good ol peeping....lol