I seem to have lost the ability to connect to wifi. My Toshiba laptop allpws me to connect to the internet via cable but there are no wireless options and I can't seem to resinstall wireless. The wireless llight is off and I can't seem to find a button to turn the wireless on. I've also noticed a ''realtek PCIe FE family controller' has come up on the icons as disconnected. I have never noticed this before. Is there any tips about restoring wifi??? I've tried a system reset to a few days ago but that did not do anything. Thank you