Several DB jobs ends with the error com.microsoft.sqlserver.jdbc.SQLServerException: Connection reset.
What can be causing this?
It look like a network issue or the compatible of your JDBC driver and your MSSQL server.
You should check with the DBA on the version of the Microsoft JDBC driver that is suitable with your SQL Server database.
If needed, you should update the JDBC driver accordingly.
JDBC driver version for each Database type can be found here.