If the failure occurs during "Remote Authentication" or when syncing with software like ZKBioSecurity or ZKBio Time, the issue is likely the data path.
Persistent failures for specific users often indicate corrupted data rather than hardware faults. Re-enrollment
The lock open duration setting determines how long the door remains unlocked after successful authentication. If set too short, the door may relock before the user can open it. Additionally, incorrect lock wiring can prevent the door from opening even when the device sends a successful unlock signal. Verify that lock wiring is correct and that the lock type (electric strike, magnetic lock, etc.) is compatible with the device output. zkteco authentication failure solution best
"Beta," he said, pulling Arjun aside. "It’s not the thumbs. Look."
The user’s template was not recorded properly initially. If the failure occurs during "Remote Authentication" or
The of your ZKTeco device (e.g., K40, uFace800, SpeedFace) The name of the management software you are using
Authentication failure on ZKTeco devices typically occurs due to mismatched firmware/software versions incorrect communication port settings hardware hygiene issues If set too short, the door may relock
If you are locked out of the device menu (Administrative Authentication Failure), you must bypass the local admin.
If the touchscreen or sensor is damaged, contact a specialist.
Face devices (like ZKTeco SpeedFace) fail in poor lighting or direct sunlight.