SQL Server access issue
You need to check your SSL and TLS settings.

Check out this KB 3135244. The settings between the client and server should be somewhat consistent (i.e. if the server only allows 1.2 and the client only supports 1.0 I think you might run into issues). Also read through the known issues on that page

Updating to a build that supports TLS 1.2 might resolve your issue.