text: why do i keep getting kicked off of messenger with the error code 999? i am usually on for almost 20- 30 minutes then get kicked off and can't get back on until the next day or so. 999 means you have tried to log in too many times. perhaps a hacker is trying to get in or purposely trying to log in from another site? change your password. everytime you get 999 error, you will be locked out for 24 hours.