I get this trying to connect to MSSQL 2014. From my dbx.log I can see it trying to connection, but this is the last entry.
2015-05-08 10:46:25.023 dbx4931:DEBUG:MicrosoftSqlServer - Connecting to database=MicrosoftSqlServer using JDBC url=jdbc:jtds:sqlserver://sql1:1433/master;useCursors=true;ssl=request;appName=Splunk;progName=Splunk
... View more