Are you using the or the web version of the software?
Error: "Cannot connect to database" or "Login failed for user 'sa'"
Error: "Object reference not set to an instance of an object" Essl Etimetracklite Error Solver
| Error Code / Name | Typical Message | Primary Cause | | :--- | :--- | :--- | | | "Database connection lost" | SQL Server service stopped, incorrect instance name | | E-202 | "Fingerprint template mismatch" | Corrupted biometric data or firmware version mismatch | | E-403 | "Device communication timeout" | Firewall blocking port (usually 5005 or 5006), faulty Ethernet cable | | E-505 | "Attendance log duplication" | Server time mismatch or device buffer not cleared | | E-607 | "Export to Excel failed" | Missing MS Access Database Engine or permission issues on temp folder | | TCP/IP Error | "Unable to connect to device IP" | Subnet mismatch or ARP table corruption | | Runtime Error 13 | "Type mismatch" | Corrupted configuration file (Etimetrack.ini) | | ODBC Error | "Data source name not found" | 32-bit vs 64-bit driver conflict | | Fingerprint Capture Error | "Sensor communication error" | Driver conflict or low voltage on USB hub | | Backup/Restore Error | "Access denied" | Insufficient file system permissions on the backup directory |
The software cannot establish a handshake with the biometric machine's IP address. Are you using the or the web version of the software
Ensure the Device ID configured inside eTimeTrackLite matches the actual ID set in the biometric machine's system menu.
The Error Resolution Module is implemented using a combination of Python scripts and system calls to perform corrective actions. The Error Resolution Module is implemented using a
Always assign static IP addresses to your biometric devices to avoid IP conflicts.
eSSL devices typically communicate over port 4370 (or 5005 for push data). Open Windows Defender Firewall, go to Advanced Settings , and create an Inbound Rule to allow TCP/UDP traffic through these ports. Error: "Logs Not Downloading" (Ping Succeeds) The connection is live, but data transmission fails.
Check your "Shift Settings". If an employee punches in even one minute outside of the allowed "Shift Begin Grace Time," the software may automatically flag them as absent. Summary Troubleshooting Checklist Error Symptom Quick Fix Target Primary Tool to Use Database Failed Folder Permissions / SQL Services services.msc & Folder Properties Device Connection Network IPs / Firewall Ports Command Prompt ( ping ) & Port 4370 Service Stopped .NET Framework / SDK Registration Windows Event Viewer Blank Reports Log Recalculation / Shift Timing Software Utilities Menu