Typically "Essbase 1042006: network error 10061" is an error where the Administration Services on the Essbase side can find the server computer but cannot connect to Essbase Server.
Working with Database Administrator to resolve the network issues with the Essbase will be a good troubleshooting step.
The Oracle documentation below provide additional information on "Essbase 1042006" error.
(Scroll down to the "1042006")
Hope this help