Few days ago, I have to disable TLS 1.0 on one of our Windows 2012 Server for PCI Compliance. This machine was also acting as Database server, and runs MS SQL Server 2012. After disabling the TLS 1.0 (using IISCrypto tool), I ran into SQL Server compatibility issues where first the SQL Server Service wouldn’t start, and once that issue was fixed, SQL Server Management Studio failed to connect with that SQL Server. Thanks to the RobWillis.info post, I was able to solve both of these issues.