When attempting to connect or refresh an Athena extract that uses a server address that contains uppercase letters, the following error occurs:
TableauException: [JDBC Driver]The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details. (Service: AmazonAthena; Status Code: 400; Error Code: InvalidSignatureException; Request ID: [...]) System error."