Create a folder named 'LotusNotesConnector' in the Mail Server and copy the Admin database file (IENConnectorAdmin.nsf) to that folder:
Once you do this, DO NOT change the Filename or Path Name of the Admin database after that. The Lotus Notes connector on the user's mail file will look for Admin Database in the path 'LotusNotesConnector\IENConnectorAdmin.nsf' of the Mail Server, when the user tries to activate the Lotus Notes Connector for the first time.
Do not create and use local Replicas of Admin Database. Administrators can use a local workstation to access the database but the Admin Database must be on the user's home server.