Had a 2 day power outage at main location. All the remote machines stayed up. They VPN and user a terminal server, their local machines are joined to the domain. Since outage recovery our single domain with 3 dc's, is having some issues. Some of the remote computers are getting the duplicate exists on the network error message. I am lost as to figure out why they are doing this and am not wanting to drive an hour to a remote machine to remove it from the domain, and rejoin it.