The replication among the sites is scheduled out of the regular business hours.You install Exchange server 2003 on the Site A and create four additional routing groups for Site B, C, D, E. Then, without waiting the scheduled replication occurs, you want to install an exchange server 2003 in Site B. However, you cannot select the newly created routing groups?
You should run the setup.exe /choosedc and specify the DC with Global Catalog Server role in Site A.
