Failed to acquire a use license. This failure may cause features like Transport Decryption, Journal Report Decryption, IRM ...

Failed to acquire a use license. This failure may cause features like Transport Decryption, Journal Report Decryption, IRM in Outlook Web App, IRM in Exchange ActiveSync, and IRM Search to not work. Make sure that the Exchange Servers Group is granted "Read" and "Read & Execute" rights on the License.asmx file on your AD RMS server.