You cannot connect to a server that is running Microsoft SQL Server 2014 or SQL Server 2012 by using the Transport Layer Security (TLS) protocol version 1.2. Additionally, the following error message is logged in the SQL Server error log:
TDSSNIClient initialization failed with error 0x80090331, status code 0x80. Reason: Unable to initialize SSL support. The client and server cannot communicate, because they do not possess a common algorithm.
This problem was first fixed in the following cumulative update of SQL Server.
Note This update adds the support for Transport Layer Security (TLS) protocol version 1.2 to SQL Server 2014 and to the Microsoft ODBC Driver for SQL Server.
About cumulative updates for SQL Server
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology Microsoft uses to describe software updates.
Microsoft SQL Server 2014 Business Intelligence, Microsoft SQL Server 2014 Developer, Microsoft SQL Server 2014 Enterprise, Microsoft SQL Server 2014 Express, Microsoft SQL Server 2014 Standard, Microsoft SQL Server 2014 Web, Microsoft SQL Server 2012 Service Pack 2, Microsoft SQL Server 2014 Service Pack 1