Todd's pro-level support with Dell expired right as his Wi-Fi stopped working. When he turns it on, it just keeps turning back off. Is it broken or is the software doing something? Leo says there is a function key on the keyboard that can turn off the Wi-Fi, and if it's sticking, that could be causing the problem. If it's a business laptop, it may also have a switch on the side that can turn it off. Driver issues may also be causing it, so he should go to Dell and download all the latest motherboard drivers.