Get ready as they will likely have you put the machine back to factory conditions before taking it in for repair. FORGET DRIVER HUNTING. Use the stock driver or the one from the web page at Asus for your machine.
Be sure your router is withing 20 feet too.
I have an ASUS X550CA running on Windows 8.1.
At least once a day my wifi will drop and all wifi connections disappear. The only way to fix this is to restart the laptop.
I have uninstalled the wireless driver and reinstalled but this hasn't helped. I have 802.11n Wireless Lan Card driver version 22.214.171.124. I don't seem to be able to find a newer version.
Can anyone help?