Zkteco — Authentication Failure Solution Best

Diagnostic checklist (step-by-step)

Face devices (like ZKTeco SpeedFace) fail in poor lighting or direct sunlight. zkteco authentication failure solution best

Authentication errors in software like ConDev can be fixed by editing the app.config file. SSH default port: 3718 Telnet default port: 23 you can use these recovery methods:

If a specific user fails, delete them from the device and re-upload their profile/templates from the ZKTeco software. zkteco authentication failure solution best

If you are locked out of the device menu itself, you can use these recovery methods: