Hi
The issues with reports happend after installation of the RU12 . we added RU13 to try and solve the issue with the Polaris update.
every SSAS connection is allowed through the firewall using port 808
just like it was prior to rollup 12 . when everything worked .
logins are set in a proper fashion , added the user and allowed it read access and same issue when trying to connect to the reports
we have a workaround now for the reports we load them manually from BIDS , and put it into CRM
issue is not resolved but its not so critically urgent anymore
/Martin