The red x tells me it's a problem with the computer, either with the computer itself or Windows. The x means that the wireless is disabled. First click on the wireless status bar, then click on "Open Network and Sharing Center." Then click on "Change adapter settings" on the left. Right-click on "Wireless network connection" and try to enable it there. If that doesn't work, make sure there isn't a physical switch somewhere on the computer that's been tripped. If that doesn't work, right-click on "computer" and select "manage," then choose "Device Manager" on the left. Under "Network adapters," you should see something with "wifi" in the name. Right-click on that and choose "update driver software." Tell it to search automatically (it will take some time). You'll have to have an internet connection, so plug a cable from your computer to your router. That should keep you busy for a while.