I am recieving the error on schedule refreshes The last refresh attempt failed because of an internal service error. This is usually a transient issue. If you try again later and still see this message, contact support.
Microsoft SQL: Connection Timeout Expired. The timeout period elapsed during the post-login phase. The connection could have timed out while waiting for server to complete the login process and respond; Or it could have timed out while attempting to create multiple active connections. The duration spent while attempting to connect to this server was - [Pre-Login] initialization