The server selected protocol version TLS10 is not accepted by client preferences [TLS13, TLS12]

[Jalvear]

Hello, I am trying to connect a SQL SERVER database and I receive this error, has anyone else had this happen to them and do they know how I can solve it?

[dzhanhir]

Hi @Jalvear,

Thank you for contacting us!

I would like to recommend to make sure the correct driver is in-use. It could be used an old version of TLS.
You can try installing a correct JDBC driver.

Also, you can check another related forum post:

Unable to connect to SQL Azure DB using DB Connector

I am using a db driven automatic connector for multiple databases leveraging DB Connector node. However when trying to connect to a SQL Server database instance in Azure using the jtDS for Microsoft SQL Server driver using the same control, I run into the following error. Login failed with invalid TLS version Tried to do some readup on JDBC connections and TLS and attempted creating a parameter called sslProtocol and explicitly setting TLS value but to no avail. Can you please with what sett…

Best,
Dzhnahir

[Jalvear]

Hi @dzhanhir From what I understood from Microsoft, this happens when the SQL server is out of date or the option is not activated. However, I was guided by this MuleSoft Help Center to find a solution that has worked for me at the moment, thanks.