Enroll at least two different fingers (e.g., right index and left index) for every employee as a backup. 2. Fix Database and User ID Mismatches
Very dry, wet, or dirty fingers will not read properly. Ask the user to wash and thoroughly dry their hands [1].
If entire groups of people face authentication failures simultaneously, the issue lies in the system architecture. Check the Verification Mode zkteco authentication failure solution best
Troubleshooting Common Causes of Biometric Authentication Failure
The of your ZKTeco device (e.g., K40, F18, SpeedFace). Whether the failure happens to just one person or everyone . The software you use to manage the system. Share public link Enroll at least two different fingers (e
This article provides the best, most comprehensive solutions for ZKTeco authentication failures, ranging from simple fixes to advanced administrative troubleshooting, ensuring your system runs smoothly. 1. Quick Fixes for Fingerprint Authentication Failure
He lowered the matching threshold from 45 to 35. Ask the user to wash and thoroughly dry their hands [1]
Arjun blinked. "But the 'best solution' articles said—"
Ensure the device connects to its original, rated power adapter (usually 5V or 12V DC).
If the device sensor is aging or the working environment changes, adjusting the matching threshold can reduce false rejections. Enter the device main menu.
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