I am trying to install the E2k10 Sp1 on Exchange CAS server in a Child domain but I am receiving error in the organization prerequisites checks "Error: Setup need to contact the Active Directory site as Schema Master..... This computer is not in the same Active Directory....."
This Exchange is in a Child domain and the Schema Master is located in the root server but the child domain are able to contact the schema Master ( Ping and netview is working). We have opened a ticket with MS but still it is not fixed. Any Help will be appreciated.