I had an issue in one of my labs when creating a DAG without AAP in Exchange Serve 2013.
In this post we are going over the error “Some or all identity references could not be translated” or “A server-side administrative operation has failed. ‘GetDagNetworkConfig’failed on the server. Error: The NetworkManager has not yet been initialized. Check the event logs to determine the cause. [Server: xxx”]” when creating a new DAG without AAP in Exchange Server 2013 SP1.
Read more at source: http://andersonpatricio.ca/error-creating-a-dag-without-aap-in-exchange-server-2013-sp1