Zkteco Authentication Failure Solution Best Jun 2026

Persistent failure after these steps usually means:

Use a dry, lint-free microfiber cloth to remove oils, dust, or smudges from the optical glass. zkteco authentication failure solution best

: Gently wipe the optical fingerprint or face recognition sensor using a dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials. Persistent failure after these steps usually means: Use

If accessing the device from a different network, ensure port 4370 (default UDP) or the configured ADMS port is open. 💻 Software & Data Synchronization lint-free microfiber cloth to remove oils