Setting up iW1 requires you to unhide your SSID. Don't worry, this is only temporary.
You can use your router's settings to change your security settings to un-hide your network's SSID. After doing so, the iW1 will be able to detect, select, and join your network. Once the network setup is completed, you can re-hide your network's SSID. The iW1 will remain connected to your network after hiding your SSID.