New content not indexed by Solr and JDBC Driver Error in Manifold CF logs after Windows update

In certain cases, updating Windows causes TLS 1.0 to be disabled and creates a communication issue between the Solr server and the SQL server. In such cases, the following error occurs in the Manifold logs.

C:\Program Files (x86)\Ektron\SearchX.0\ManifoldCF\logs

The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "SQL Server did not return a response. The connection has been closed."

This is related to how SSL is configured for Java. More on this here.

https://blogs.msdn.microsoft.com/jdbcteam/2008/09/09/the-driver-could-not-establish-a-secure-connection-to-sql-server-by-using-secure-sockets-layer-ssl-encryption/

Upgrade to 9.2 or higher of Solr.