Robomongo 0.9.0 connecting to the MONGO database, a solution that prompts for a failed connection

Robomongo 0.9.0 Connection failed while connecting to MONGO database. (IP and port number determination is right)

Basic points of attention:

1, the MongoDB service opens, when opened, specify the port number, the default is 27017, using the default value, do not specify.
2, firewall shutdown or allow port (6666) through the firewall
3, the case of authentication, database connection and user name, password to match. The correspondence between the database and the user can be viewed in the collection system.users in the system database System.admin

Robomongo 0.9.0 connecting to the MONGO database, a solution that prompts for a failed connection