So here is my issue. I have the WRT54GL router. I have everything plugged into it through Ethernet cables except for 2 things. PS3 and a Laptop. Now I had the router setup so that anything can connect to it. The PS3 detected it, and did what it had to and connected no problem. The lapop couldn't even see the network. So I changed the settings to allow only ones who have the mac address added to the router. The PS3 did this, worked fine, no issues. I did this with the laptop and it seemed to connect to it just fine as well. A couple days later, that laptop looses connection, and I can't get connected anymore. The connection to the router is still there and even says strong, but nothing. I have always had these issues with laptops, loosing connections, hard time finding more wireless ones etc. Any ideas, what do I need to change, edit...its a XP laptop. The rest of the hardwired network is 2 7's and one XP. If that helps at all.