I'm trying to connect to my 2008R2 SQL server using the "Add Database Connection" wizard in Catalog, but I'm getting an error message "Unable to connect to database server to retrieve database list; please verify your server name, user name and password info and try again."
I opened up an ESRI support ticket but they just told me ArcMap 10.5 is not supported with SQL server 2008 and helped me create a read only connection to the DB and that's not helping me. I want to connect to the database so I can add a query layer and geocode addresses from my SQL DB. That's another story though, for now just trying to make the DB connection. Thanks.