I'm using a live USB for Ubuntu and it's not detecting the Wifi connection on my Asus Q302LA.
I can't use an Ethernet cable because I don't have an Ethernet port on my laptop.
How should I proceed?
You will probably need internet connection for installing the driver.
How much i know from our little chat, you have a Note 4 Android phone connected to your WiFi.
Try to set up USB Tethering on the phone and connect the phone to Ubuntu via USB cable, it should work out from the box for working internet connection.
Next step is on Ubuntu, go to System Settings->Software & Updates->Ubuntu Software Tab.
Check "Proprietary drivers for devices (restricted)" and go to tab labeled "Additional Drivers" to check if there is a driver availible for your WiFi card.
Report back if solved or you need more info.
P.S. if you are new to Ubuntu this guide is great for setting up a new system:
http://howtoubuntu.org/things-to-do-after-installing-ubuntu-14-04-trusty-tahr
lspci
and edit your question with the result of that command. EDIT: also run: sudo lshw -c network
and post the results.
I couldn't stay connected to WiFi with my brand new ASUS Q302LA. I found the problem was the Network Adapter Driver. I downloaded the RALINK 5.0.47.0 driver from the ASUS website, and everything has worked GREAT since the driver update.
The best solution is reverting your kernel to the version 3.13.xx. I did it and now its working.
You can install it from the software center and use it with advanced options from the grub startup page.