|- Make, model # of laptop?|
- Does laptop have a WiFi device in it?
- Make, model, firmware revision of router?
- Router is wireless (I'm assuming)?
- Is WiFi device in laptop enabled in Windows, and turned on with switch on laptop, or Fn+F_ keys?
- Is there a WiFi encryption key - WEP, WPA, WPA2 set in the router?
- Does the WiFi router have MAC address filtering enabled?
Just another stupid saying...