I have created an Amazon RDS database under the free tier (SQL Server Express, micro instance etc.), but I cannot connect to the server using Microsoft SQL Server Management Studio. I have configured the security group of the database instance (default) to accept my IP address.

I am following the connection guide from amazon located here

The error I receive is:

Cannot connect to databaseName.c***rnqg***v.us-east-1.rds.amazonaws.com,1433.

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.) (Microsoft SQL Server, Error: 10060)

I am using Server type "Database Engine" and using SQL Server Authentication.