C8, MSSQL and TLS 1.2

I am caretaker for a set of applications using C8 and MSSQL. The DBA has asked if I can change the TLS version from 1.0 to 1.2. He says that the reason for this login error message on our new SQL server instance is that the application is using 1.0 and he wants to use 1.2. Is this possible?

What versions of Windows are the client machines running?
What SQL ODBC driver do you have installed on the client machines?

You may find some suggestions here:

Thanks for responding.

The client machines are running Windows 10 and 11.

I will read the information found at your link, and I will check for the ODBC driver version on a Win 10 machine tomorrow. Here are the drivers on a Win 11 machine.


On a client machine, you might open the ODBC Admin tool and see whether you can successfully create and test an ODBC connection to the SQL server. And if so, which of the ODBC drivers do and do not work.

In the final analysis, the culprit was Windows Server 2016 Datacenter. The SQL Server driver SQLSRV32 would not update. We are retiring those machines, and a test on 2019 Datacenter was successful. The infrastructure group will have to finish their installations before cybersecurity group can have their way.

Thanks for the help!