1. System --> Time
Double check the Timezone, date and time are correct. If you need to alter the settings, you will need to Untick the Enable NTP feature and click Apply first.
Then once you've done that Tick the Enable NTP feature again and Apply it.
There should be no internet access for these machines but as of November 2024, nz.pool.ntp.org is working, and their internal NTP server is not. This may change.
If the NVR reverts to 2014 after powerup, the CMOS battery has failed and needs to be replaced - this isn't a straightforward procedure but it's urgent because the system does not record or function when set to 2014!