Server To Aws Rds - No Connection Could Be Made Because The Target Machine Actively Refused It

I'm moving a website from a dedicated server to AWS. First I want to transfer the database (sql server express). I've setup an AWS RDS Sql Express database - and can connect to it

Solution 1:

you should check 2 things:

1- the rds endpoints whether it is correct or not (in my case the endpoint was wrong)

2- the rds got public accessible set to true and its security group allows your ip