MC9090-G Datawedge RFID EPC Clas 1 Gen 2?

Hi We have an MC9090 G with the UHF 53 key. We install the Datawedge 2.0 but the RFID is gray out. How can be enable. or what I really need to do to get RFID working with the Datawedge? Note : The RFID Demo Application installed show: UHF-Reader Reader Type: 50/ID ISCUM02/PRHD102 EPC Class 1 Gen 2