Error detail:-
An unknown error has occurred. The provided message is "Could not get JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Could not connect to server:1433: Connection reset".
Hi
Did you already checked if you can connect from the DPA application server to the new MS SQL Server instance?
One simple test can be to use a .udl file ( example -> The easy way to test SQL connectivity – Michael Griswold's SCCM Tips and Tricks ). It doesn't use a JDBC connection, but at least you can perform a simple connection test.
regards
fabian
Telnet and SQL connect working fine
Are there any more details in the log files "...\DPA\iwc\tomcat\logs" ?