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Install devices at eye level with consistent indoor lighting to prevent facial recognition errors.
The most common culprit for fingerprint authentication failure is the accumulation of dirt, oil, and residue on the sensor surface. In high-traffic environments such as factories or construction sites, workers' hands are often soiled. This residue creates a barrier between the finger and the sensor, distorting the biometric image. The best solution here is preventative maintenance. A rigorous cleaning schedule using soft, lint-free cloths and alcohol-based cleaners (where manufacturer-approved) can restore sensor sensitivity.
Key causes (most common to least)
If the "Authentication Failure" occurs while trying to connect the device to management software, it is likely a network handshake issue.
If accessing the device from a different network, ensure port 4370 (default UDP) or the configured ADMS port is open. 💻 Software & Data Synchronization
If a specific user fails, delete them from the device and re-upload their profile/templates from the ZKTeco software.
Install devices at eye level with consistent indoor lighting to prevent facial recognition errors.
The most common culprit for fingerprint authentication failure is the accumulation of dirt, oil, and residue on the sensor surface. In high-traffic environments such as factories or construction sites, workers' hands are often soiled. This residue creates a barrier between the finger and the sensor, distorting the biometric image. The best solution here is preventative maintenance. A rigorous cleaning schedule using soft, lint-free cloths and alcohol-based cleaners (where manufacturer-approved) can restore sensor sensitivity.
Key causes (most common to least)
If the "Authentication Failure" occurs while trying to connect the device to management software, it is likely a network handshake issue.
If accessing the device from a different network, ensure port 4370 (default UDP) or the configured ADMS port is open. 💻 Software & Data Synchronization
If a specific user fails, delete them from the device and re-upload their profile/templates from the ZKTeco software.