Epicor Data Discovery BAQ Connection not found

Hi, so we already Installed the Data Discovery on our Epicor Server. But we have a problem with using the Epicor BAQ Data Sources. In our Data Connection, there is no BAQ Source, I think BAQ Source is the default data connection and should be existed when we Install the Data Discovery. When I look up the database I can see there is a record for BAQ Source type, but I don’t know why I can’t use it in our Data Discovery. In our Data Discovery, the connection will not visible. Is there any setup that I’m missing?
I don’t know if its related, but my Data Discovery is unsecured for now. Could be that the problem?