Microsoft Ole Db Provider For Sql Server Tls 1.2 ((full)) May 2026

Provider=SQLOLEDB;Data Source=sqlserver.contoso.com;Initial Catalog=MyDB;Integrated Security=SSPI; to:

Then ensure TLS 1.2 is enabled:

Registry keys (reboot required):

Set conn = Server.CreateObject("ADODB.Connection") conn.Open "Provider=SQLOLEDB;Data Source=myServer;Initial Catalog=myDB;Integrated Security=SSPI;"

conn.Open();

[DBNETLIB][ConnectionOpen (SECDoClientHandshake()).]SSL Security error. [Microsoft OLE DB Provider for SQL Server] Cannot generate SSPI context. The only Microsoft-supported OLE DB provider that fully supports TLS 1.2 (and TLS 1.3 where applicable) is MSOLEDBSQL (Microsoft OLE DB Driver for SQL Server).

Provider=MSOLEDBSQL;Data Source=sqlserver.contoso.com;Initial Catalog=MyDB;Integrated Security=ActiveDirectoryIntegrated; (Use Integrated Security=SSPI if using classic NTLM/Kerberos instead of Azure AD) Append Encrypt=yes; and TrustServerCertificate=no; for production (with proper certificate validation). To strictly require TLS 1.2, you may need to configure Schannel system-wide or set the SSL Crypto context – but MSOLEDBSQL automatically negotiates TLS 1.2 if the server supports it. To disable older protocols system-wide: microsoft ole db provider for sql server tls 1.2

Set conn = Server.CreateObject("ADODB.Connection") conn.Open "Provider=MSOLEDBSQL;Data Source=myServer;Initial Catalog=myDB;Integrated Security=SSPI;Use Encryption for Data=True;" Even in .NET, if you are forced to use System.Data.OleDb , change the connection string similarly: