Security Management requires an exception to use TLS 1.0 and/or 1.1. We need to enable the SQL Server for TLS 1.0 in order for the CA ADMIN TOOL to function. Additional testing revealed the admin tool connects to a SQL Server instance with only TLS 1.2 enabled using ODBC driver 17, but the Web Viewer website would not work. Some pages just hang.
Release : 11.5
Component : CA Output Management Web Viewer
Microsoft Driver replacement - on the Web Viewer server go into the MS 32 bit ODBC configuration tool, run As Administrator, go to Add a DataSource, name it something like CA-DVWEB_Test... and select the "SQL Server Native Client 11.0" driver (if it's not there, acquire it from Microsoft). Next, go into the Web Viewer AdmTool, Configure Server Settings and and change the Machine Data Source to the one just added. Recycle IIS.
Log into the SQL Server and change the registry settings to disable TLS 1.0 and TLS 1.1. When you next log into Web Viewer and the AdmTool, all the screen navigation should work as documented/expected.