External rest data source authentication issue

Unfortunately no satisfaction on this. I changed the verb to GET, but I still get this error when I load the page with the model based on the service in page builder: 1. Error retrieving metadata for Model(s) associated with Data Source ‘OrionConnect’. Please check Models’ properties to ensure they are set correctly. Error connecting to REST Data Source at URL “https://api.orionadvisor.com/api/v1/portfolio/accounts”: Unauthorized I checked my user ID and password several times and they are correct.