The Login incorrect message indicates that:
You have entered the wrong login ID or the wrong password. This is the most common cause of the Login incorrect message. Check your spelling and repeat the process. Note that most systems limit to five the number of unsuccessful login tries you can make:
If you exceed a number of tries limit, you will get a Too many failures - try later message and not be allowed to try again until a designated time span has passed.
If you fail to successfully log in within a specified amount of time you will receive a Too many tries; try again later message, and not be allowed to try again until a designated time span has passed.
Another possible cause of the Login incorrect message is that an administrator has locked your password and you cannot use it until it is unlocked. If you are sure that you are entering your login ID and password correctly, and you still get a Login incorrect message, contact your system administrator.
Another possible cause of the Login incorrect message is that an administrator has expired your password privileges and you cannot use your password until your privileges are restored. If you are sure that you are entering your login ID and password correctly, and you still get a Login incorrect message, contact your system administrator.