There is a WLAN setup at my network. There are around 4 computers connected on the same. I am using a router with WEP security and Mac filtering. Now there is a new laptop that has Vista. It is a hp product. I can see the laptop on the network but when I try connect it dies not work. Th signal shown in the vista wifi utility is very low. It is the most nearest system to the router so the signal strength must be good. I cannot figure out why it is so low. I had tried to work with the mac address of laptop but I cannot get that also. When I perform ipconfig I got a message saying that media disconnected. What does this means. Is the lan hardware disabled.