Ok, I'll turn my wifi back on and restart the process with the 'join' option...
Aha!
Now I've got 3 options (after selecting "join my current network")...
- I want Airport Express to wirelessly join my current network.
- I want to connect Airport Express to my network using Ethernet to extend my current network or create a 2nd network.
- I want to disable to the wireless network on the Airport Express and connect it to my computer or network using ethernet.
Option 2 for me?