NetFlow Analyzer 9.6 Linux version Radius Authentication Fail ??

I download "NetFlow Analyzer Professional and Professional Plus Edition" Linux version for test
ManageEngine_NetFlowAnalyzer_9600_64bit.bin

When I test Radius account with my windows server 2003 IAS Radius. In logon page it always show "Invalid Username / Password".

The windows IAS event show "(Event id 15) "A malformed RADIUS message was received from client XXXX. The data is the RADIUS message."

The same test with windows NetFlow Analyzer 9.6 working properly.

My Linux info.
LSB Version:    :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: CentOS
Description:    CentOS release 6.3 (Final)
Release:        6.3
Codename:       Final