Why can't I clock in after registering my ID card June 20, 2022 08:46 Updated A：The reason for this problem is that the ID card has been invalidated, you can test it in the test mode in the time and attendance machine to check whether the ID card is still valid. Related articles Why are there so many vertical/horizontal stripes on my display? Why is there no sound from the margin keys and no sound from attendance? When I turn it on there are two black dots on the screen? How do I add a check-in/check-out record if an employee does not remember to clock in or out? Why does the time clock go to zero after a power failure and a restart after a period of time? Comments 0 comments Please sign in to leave a comment.