enter image description here here is the error . I want to ask While connecting SQL server Authentication I have to used Username and password that i used in while make database in AWS RDS or that i save for SQL Server Authentication but both of them giving same error.
If anyone has faced the same issue please suggest the solution.
That is a network related issue and not a login issue. The RDS/SQLSERVER instance can't be found using the given endpoint and/or port. You can verify this by using the PowerShell command below or similialy by using Telnet.
Simply replace the -ComputerName with your endpoint name. If you are on a non-standard port, then that will also need to be updated.