Zkteco Authentication Failure Solution Best [ GENUINE · HANDBOOK ]

: ZKTeco devices often use default ports like 4370 (TCP) for proprietary protocols, 3718 for SSH, or 23 for Telnet. Ensure these are not blocked by a firewall.

The most common cause of failed biometric recognition is a physical barrier between the user and the sensor. zkteco authentication failure solution best

: Ensure fingers are neither too dry nor too wet. For facial recognition, ensure the area is well-lit and that there are no obstructions like masks or heavy glare. : ZKTeco devices often use default ports like

: Gently wipe the optical fingerprint or face recognition sensor using a dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials. : Ensure fingers are neither too dry nor too wet

: If specific users consistently fail, delete their existing profile and re-register their biometrics to ensure a fresh, high-quality template. 2. Network and Port Configuration