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Attendance device offline

Steps to diagnose​

  1. Go to Attendance → Devices and check the device status.
  2. Select Ping device — if it fails, the server cannot reach the device.
  3. Check the device is powered on and connected to the network.
  4. Verify the IP address in ImpartLab matches the device's current IP.
  5. Check firewall rules — the device needs outbound access to port 443 on the ImpartLab server.

Records not syncing after reconnection​

Devices queue records locally when offline. Once reconnected, they sync automatically. Allow up to 5 minutes for the queue to flush.

If records are still missing after 10 minutes, manually enter attendance for the affected period under Attendance → Batch attendance.

Re-register a device​

If the device IP has changed permanently:

  1. Go to Attendance → Devices and open the device.
  2. Update the IP address and select Save.
  3. Select Ping device to confirm connectivity.