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1. Access Troubleshooting Guide

Using new operating systems may cause problems with Network Inventory Reporter
You can receive "could not connect" or "The RPC Server is unavailable" error messages when you access a remote machine. 

To avoid this, follow these steps:

                   a.   Set sharing and security model to "Classic".

                   b.   Configure DCOM Remote Launch permissions.

                   c.   Connecting through Windows Firewall