ERROR: "Unable to Connect" is received when trying to specify the Notes server name in the Migration Manager configuration.
1) There could be a networking issue preventing access to the specified Domino server
2) Firewalls will prevent access to the Domino server
1) Open the Lotus Notes client to confirm there are no prompts or errors and a successful login can be accomplished. Turn off any firewalls. Also, try usibng the IP address of the Domino server.
2) Some Domino servers are configured to only authenticate via their hostname. Open the Notes client on the NME migration server configure it to connect to the Domino server as the migration user account. Open the migration user's mailbox. Take note of the Domino server name in the upper left of the window. Enter this short hostname into the NME Notes Server settings screen.