To Set Up Date and Time

1. Right-click Live View → open drop-down menu.
2. Click Main Menu.
3. Click System.
4. Click Date & Time tab.

5. Set current time and time zone (e.g., GMT-5 for Eastern Time, USA).
6. Enable DST if applicable.
7. For NTP auto-sync:
   • Check NTP box.
   • Server: pool.ntp.org (recommended) or time.windows.com / time.google.com
   • Port: 123
   Or use Manual Update for manual entry.
8. Click Apply/Save.

Guarding Vision DVRs: Go to Configuration → System Settings → Date & Time.

Uniview (UNV) NVRs: Web interface: Setup → System → Time (or local: Menu → System → Time). Enable NTP auto-update. DST: Setup → System → DST.

Troubleshooting Common NTP Errors

• NTP fails to update / "Synchronization failed" / time stays wrong: Confirm internet access (test ping to 8.8.8.8). Try different server (pool.ntp.org is most reliable). Check firewall/router allows outbound UDP port 123 (many block it by default).
• Time drifts or resets after power loss: Enable NTP and set update interval (e.g., 60–1440 minutes). Replace CMOS battery on older units if time resets on reboot.
• "No server suitable" or connection timeout: Verify correct port (123), no VPN/proxy interference, and DNS working (set DNS to 8.8.8.8 / 8.8.4.4 if needed). Reboot NVR after changes.
• Time correct on NVR but wrong on cameras / app: Ensure cameras sync from NVR (check camera NTP settings or "Sync with NVR"). Reboot cameras or NVR.
• DST not applying correctly: Enable DST checkbox + set correct start/end dates and bias (usually +60 min). Disable/re-enable NTP after changes.

Still not syncing? Check network logs, firmware version (update if outdated), or contact support with error message and device model.