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When accessing CAS, you are permitted a limited number of login attempts before your user name will be blocked.This applies to every version of CAS, and includes the GB Cloud.

The login credentials include:

  • Your Sign-in Name

  • Your Sign-in Password

  • Your 2FA code (if implemented)


If you use LastPass or another online password storage utility, it may attempt to log you in automatically with an old 2FA. This will fail, and you'll exceed the threshold resulting in your IP being banned - without any effort on your part!

Failing to correctly enter all 3 credentials 5 times will result in a ban:


The resolution depends upon the server you are trying to access.


If you use the GB Cloud, please create a support ticket and request that the ban be lifted.



A reset link will be sent to your email, which will lift the ban and enable a new password entry.

Password requirements:

  • 12+ characters,

  • includes at least one digit,

  • includes at least one special character (any keyboard character acceptable),

  • includes at least one lowercase + one uppercase characters.


Solution 1: GUI

Have a CAS administrator reset your password.

Solution 2: CLI

Login to the CAS CLI, and type:

Code Block
sudo /batm/batm-manage unban-user USERNAME
  • Replace USERNAME with the actual username blocked.