I am using the 3.0.0 driver to issue the following command to the 3.0.2 server. The goal is to change the password.

BasicDBObject doc = new BasicDBObject("updateUser", "1").
append("updateUser", <USER>).
append("pwd", <passwd>);
.....
private DB dbObj = null;
....
this.dbObj.command(cmd);

The command always fails with the following error -"The server is not the primary and did not execute the operation"

The same command runs fine from the mongo shell.It also runs fine against a 2.6.x server. So basically it fails against a 3.x server.