Hello Ankit,
Can you review the below installation instructions and confirm you were following them? Thanks.
Install OptiFDTD on each client machine.
Log onto the client machine as administrator. Insert the installation CD to the CD-ROM.
Go to the OptiFDTD 16 Setup folder.
Run setup.exe
Install the License Key Run-time Environment software (HASP Run- time) on a separate computer which is intended to act as the License Server Computer.
Ensure you have Administrator privileges.
Do NOT connect the hardware key to the license server computer until requested.
Insert the installation CD to the CD-ROM.
Unpack the “Sentinel_LDK_Run-time_setup.zip” archive and run the “HASPUserSetup.exe”.
Follow the on-screen instructions Connect the hardware key to the server.
Open the page: http://localhost:1947/_int_/devices.html to verify that the hardware key is detected.
If the problem persistes, please contact support@optiwave.com with your error message and license information.
Thanks.
Sawyer