can't connect to mysql on AWS RDS (error 2003)

Question

I'm in trouble on setting up a MySQL RDS.

From my EC2 instance, I can connect fine, but from my laptop, I get an error 2003 (timeout).

• My RDS instance is configured to be publicly accessible.
• My security group has rule inbound and outbound to allow all traffic everywhere (0.0.0.0/0).

Should I configure something on my VPC or Internet Gateway?

Answer 1

As your database is publicly accessible, the firewall would be the problem here. So, check your LAN's firewall settings. Also, let me give you documentation and a forum link which I think would be useful.

https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_ConnectToInstance.html

https://forums.aws.amazon.com/thread.jspa?threadID=123483