wifi to lan on old computer

Newbie here. I bought an gl mt300a and i wonder how can i set it up to route all the traffic from wifi to my old computer ethernet port since it doesnt have a wifi card. Thank you!

Your post could be interpreted a few ways, but I will assume you want to use the mt300a to wirelessly connect to your primary router and then to your PC via cable. You probably want to read this blog post: Blog - GL.iNet

 

also here: Overview - GL.iNet Docs