I have configured a SharePoint 2010 farm consisting of 1 WFE, 1 APPSVR, 1 DB Server, 1 SSAS server. The web application hosted on WFE1 is SSL enabled. The site also hosts SSRS reports. Kerberos is setup appropriately since PPS, SSRS reports are working fine so I dont think there is an error in Kerb configuration. WFE is internet facing and the users will also be accessing SSAS from their desktop using Excel 2010 client(not excel services). So i had to go through SSAS over HTTP configuration. The url that I provide is http://servername/OLAP/msmdpump.dll and the connection string in shared data source is as follows:
Data Source=http://servername/OLAP/msmdpump.dll;Initial Catalog=CubeName
Test connection fails with the error message "Connection was lost". This I guess has something to do with SSAS over HTTPS configuration but I'm not sure how to setup that.