|During a lightning storm it is important to UNPLUG electrical appliances if you wish to prevent ground wire or power lightning surges. This includes disconnecting lan devices like a router or switch from the wall since a power surge can come through the lan lines.|
I am assuming from your comment that you are using wifi that this is what the computer in question is using.
Since this is a wireless card I doubt the storm had anything to do with its demise.
Usually the wireless card will give you an error message related to its connection.
Any errors you can report?
Is this a builtin wireless or a usb wireless interface?