There are five common reasons a connection to a database fails.
The database is not reachable from the internet
Contact your database administrator. Options include exposing the database (with proper firewall rules), opening an SSH tunnel, or using an on-premise integration agent.
The database blocks Etlworks's IP address
Whitelist the static IP of the Etlworks shared instance (app.etlworks.com):
US: 18.188.180.116
If you are using a dedicated instance, contact support@etlworks.com for your instance's IP.
The connection parameters are wrong
See how to configure connections for each supported database.
The credentials are wrong
Verify the username and password with the database administrator.
The database requires a secure connection over SSL
See how to configure a secure connection for PostgreSQL and MySQL.
Etlworks doesn't have a JDBC driver for this database
Contact your system administrator or Etlworks support.