When you sign up for an account on Anaconda Cloud you must provide an email address. After registering a welcome email will be sent to this email with an activation link. If you do not activate your Anaconda Cloud account within 48 hours this link will expire. If you do not promptly activate your account you will be locked out and may receive an error when you attempt to log in, "User is not enabled to login."
If you encounter this issue, go to https://anaconda.org/account/forgot_password and change your password. You will receive a new email in order to change your password, once you successfully changed your password your account will be activated and you should be able to log in normally.