Foglight starts but stops soon after starting (4250643)

Foglight is not starting up. The log file shows the following:

2011-11-10 09:40:09.812 FATAL [main] com.quest.nitro.service.upgrade.db.DatabaseUpgradeService - Fatal error connecting to database. Shutting down Foglight server... Check and make sure your database configuration is correct and the database server is up running.
2011-11-10 09:40:09.812 WARN [main] org.jboss.system.ServiceController - Problem starting service com.quest.nitro:service=DatabaseUpgrade
java.lang.Exception: Fatal error connecting to database
 

Database is unreachable or down.

Check the following:

1. Database server is up and reachable (ie. test ping if enabled)
2. Address resolves (DNS)
3. Database is up (Test DB connection with another tool)

If the above solutions do not address the issue, additional troubleshooting may be required.