Consider the following scenario:
– You have one Microsoft Dynamics AX 2012 AOS instance fully configured, and users are able to open reports from the AX client connecting to this instance.
– You now add an additional AOS instance.
– Users connecting to the additional/new AOS instance get the following infolog error when trying to open an SSRS report:
The error occurs because you need to add the new AOS server instance to the Report Servers form. Follow through the steps given at http://technet.microsoft.com/EN-US/library/jj677281.aspx to add a new configuration and ensure under the Application Object Server information tab, you select the new AOS instance.

