ZyXEL Communications X650 User Manual page 47

Please retype the new password again when you see above message.
If you see the following message:
It means the content in 'Current Password' field is wrong; please click 'OK' to
return to the previous menu and try to input the current password again.
If the current and new passwords are correctly entered, after you click 'Apply'
you will be prompted to input your new password:
Please use your new password to enter web management interface again, and
you should be able to login with the new password.
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