My laptop has major wifi issues. It can't stay connected to the wifi for more than 3 minutes.
I have the latest bios and wifi drivers.
I have to switch off and on the laptop for it to find the wifi networks. After 2 minutes it will disconnect. Then it shows you the networks but doesn't connect. And after a minute or two. It won't even show the networks at all.
I have to plug in the ethernet cable for internet. Then if I unplug it drops connection. Sometimes I keep the connection on wifi for 10 to 15 minutes.