Hi,
I am just looking on my wcs-interface (4v0).
In menu-item "Layer 2 Security":
choose WPA1+WPA2
Then in menu-item "WPA1+WPA2 Parameters"
choose WPA1 and/or WPA2 "Enabled"
In menu-item "AuthenticationKeyManagement"
choose "8021x"
Maybe you have choosen the 8021x in menu-item "Layer2 Security" what is just wrong.