Flash the firmware via a USB drive or through the web interface to resolve known software calculation glitches. Prevention Strategies for Administrators
For devices connected to a network or PC, authentication can fail due to communication problems. ZKTeco devices default to using port 4370 for TCP/IP communication, so ensuring this port is open is a critical first step in any network troubleshooting.
: If you are locked out of the device settings as an administrator, you may need to perform a factory reset using a time-based method or a physical tamper switch on models like the F18 . Troubleshooting Checklist
Access the device menu, go to System > Biometric , and adjust the threshold scores. Lowering the threshold slightly can reduce false rejections for facial matches. 3. Fixing Database and User ID Mismatches zkteco authentication failure solution best
Lower the threshold value slightly (e.g., from 45 to 35) to make the scanner less restrictive.
Authentication failures in ZKTeco systems can be addressed through a comprehensive approach that encompasses hardware maintenance, software configuration, user education, advanced authentication mechanisms, and monitoring and support. By implementing these measures, organizations can ensure a secure, efficient, and reliable authentication process, minimizing the risk of authentication failures and maintaining the integrity of their access control systems.
Here are the most effective ways to troubleshoot and resolve this error: "Authentication Failure" Displayed on Time Clock | TimeMoto Flash the firmware via a USB drive or
If memory corruption is suspected, perform a step first, then execute a Clear All Data command to factory-reset the storage layout before re-syncing from the software. 3. Verify Firmware Compatibility
Try the default developer codes if the device is in its factory state, though most modern units require a unique setup.
Outdated firmware can cause communication bugs between the optical sensor and the internal motherboard. : If you are locked out of the
The best depends entirely on whether the failure occurs on the physical device screen during user scanning, or on your computer screen when connecting management software like ZKBio Time, ZKAccess 3.5, or ZKBio CVSecurity. In most scenarios, user-side scanning failures stem from dirty scanner prisms, poorly registered biometrics, or dry fingers , while software-side connection errors stem from incorrect communication keys, port blockages, or outdated SDK libraries .
When all else fails, do this.