Connect AWS RDS link to Mysql workbench

[sachithl]

We tried to connect AWS RDS URL to MySQL workbench through Pfsense firewall it does not work. But when we try to connect it without firewall, in a another connection it works.
Tried some port forwarding with default SQL port (3306) as well but didn't get any chance to connect through pfsense firewall.
Failed to connect to MySQL alert is popping out. We are hoping to buy pfsense hardware device to built our network in the future. Kindly assist with this issue.