This is NOT networking by the way.
Currently I can communicate between my laptop and an external device via TCP/IP using the RJ45 interfaces on both the laptop & external device. I have been told by our manufacturers that I can do this Wirelessly. There is a Wireless card in my laptop. I need to plug a Wireless device into the RJ45 port on my external device and connect, peer to peer?
How do I do this and what device do I need?