We recently added a new domain controler, as well as a new dedicated terminal server, to a network. After moving over DNS, DHCP, FSMO roles, files and shares, we shut down the old DC before running DC promo on it as a test. Everything was fine for a couple of hours, but then they started having problems. Outlook would not connect, instead, it gave users the message "outlook is requesting data from the server". Users could not log in to the terminal server. When we turned it back on, everything came back up. Any ideas on what we should look at?