I had this RaspberryPi idea. What is does is it get an internet connection from a router from an external wifi card. Then it out puts wifi from the internal wifi card creating an AP. and it also out puts internet data via Ethernet so that you can do file transfers locally and and use the internet as well. But for some reason it does not like when I try to make an AP using Eth0 and Wlan0 it just causes an error? Can any body please help me.