I have an Asus R 540s labtop that all of a sudden stop connecting to the internet. Through WiFi, my cell phone I use as a hot. My other devices see the phone like my labtop use to do; now it doesn't even see it listed in the current wifi connection. I tried to delete the wifi but it will not allow me to do that and I'm the administrator of this device. Are there any other things that I could try. I have updated the drivers to the wifi adaptor and still nothing.