I added the device to my wireless network properly and I got the green led light on TC.
are you using join a wireless network?? That is a very poor way to run it.
The Drive was mapped correctly on my laptop but it gets disconected in a few minutes.
WHen the drive is lost, are you still on internet? Is internet via wireless or ethernet?
Can you ping the device?
I recommend you use fixed channels, and all SMB names.. ie short, no spaces, pure alphanumeric.. this is important as well for hard disk name, TC name and wireless names.