Zkteco Authentication Failure Solution

: Unplug the power source or battery for 30 seconds and reboot.

If you are called to troubleshoot a failure onsite, follow this sequence: zkteco authentication failure solution

: If the device time is significantly different from the server or real-time, it may cause authentication logs to fail or be rejected. Authentication Fails - an overview | ScienceDirect Topics : Unplug the power source or battery for