I have an Asus X541uv for a year. recently, I have a problem with my Wi-Fi driver(or the Wi-Fi card). it disconnects suddenly and an Ethernet icon with a red symbol shows in the taskbar instead to Wifi... in Device Manager there is no Wifi driver!!! some times when i restart, it solves but usually not solve... my wifi driver is up-to-date and i have downloaded it from ASUS website... PLEASE HELP ME!!!