I can't connet to my wifi and my HP laptop CAN't even recognize a Wifi connection. Actually before this case happened, i can freely connect to our wifi. What is wrong my my laptop? I already tried some tips given by other users like going to device manager and click wifi card. Howver, to my surprise WIFI CARD can't be found in my device manager. What happen to it? Was it deleted on its own? What will i do now?