So I've been trying to use a laptop who's wifi card doesn't work properly, by using a Lenovo V570 laptop with Ubuntu 12.04 to bridge the two networks. I changed my ethernet network to "Shared to other computers" through Network Manager, but it still refuses to work.
I believe the issue may be in my /etc/network/interfaces, as I did edit it at one point and forgot to make a backup. Here is what mine currently consists of:
auto lo iface lo inet loopback
If someone could post their (stock) /etc/network/interfaces file, I could try with that.
Thanks a lot!