Issue Customer had stopped using TLS v1 and v1.1, and was only using TLS v1.2. At that point, they were unable to go to and display the RSA Adaptive Authentication (On-Premise) Back Office web page with HTTPS.
main, handling exception: java.io.IOException: SQL Server did not return a response. The connection has been closed.
Resolution - Since this was Windows Server 2012, we checked and confirmed registry keys associated with TLS appear to be set correctly.
Confirmed MSSQL version 10.50.6560.0 is greater than the minimum MSSQL version that supports TLS v1.2, which is 10.50.6542.0.
<Connector port="22300" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443"
keystoreFile="C:\Program Files\Apache Software Foundation\Tomcat 6.0_Tomcat6_Core\conf\keystore.jks" keystorePass="changeit"
Confirmed the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files are in place.
Updated to the most recent sqljdbc drivers, sqljdbc41.jar, found on the Microsoft Support website under the "Client Component Downloads, JDBC 6.0" heading.
Once all of these were put in place, the customer was able to use HTTPS and display the Back Office web page (e.g. https://localhost:8443/backoffice) we were able to see the SSL handshake and data transmission take place with TLS v1.2.