ADAR100

Did you reprogram the EEPROM by chance?  That, and not having the USB cable connected from the PC to the SDP-S board, are the only things I can think of that would make the control software not able to detect the SDP-S. 

For the benefit of other users, we found that the ADAR1000 software contains a library that can cause issues with Windows "FIPS".

************** Exception Text **************
System.TypeInitializationException: The type initializer for '<Module>' threw an exception. ---> System.InvalidOperationException: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.
at System.Security.Cryptography.RijndaelManaged..ctor()
at eUErCk98Qq233Z9p1w.eabCKXBOHqIKh1Pwfk.eCkE8Qq23()
--- End of inner exception stack trace ---

One fix for this is the following:

Create a file named ADAR1000.exe.config in the same directory as your install of the ADAR1000 eval software - C:\Program Files (x86)\Analog Devices\EV-ADAR1000 in my case.

Open the file for editing and add the following

<?xml version="1.0"?>

<configuration> 

    <runtime> 

        <enforceFIPSPolicy enabled="false"/> 

    </runtime> 

</configuration>

Save the file and try running the program again.