Youl should be able to remote desktop to wireless clients.
When you trying to remote desktop wireless clients do that client have any wired connectivity at all ? Are those client have MS operating system ? If so you can try Remote Desktop as a test & see.
If you want to see what's going on, create a test SSID with open auth & put a wireless client on to it. then try to remote desktop using your application & take a wireshark capture of the switchport where AP connected (servicing wireless client).