I don't have my PoE injector connected to a UPS and we tend to have frequent power failures.
Already while testing my new setup, I have noted that after setting the time and shutting down the CPE to unplug the PoE, the time set in WinBox is lost. Thus the next time I open up the Log I see Jan/1970 timestamps again! (Bridge not yet fully in production 24/7 use)
I have studied the RouterBoard circuit diagram and there appears to be no battery backup like on a PC motherboard (BIOS settings).
Can I synchronise the RouterBoard time with an atomic clock of sorts? i.e. point the RouterBoard to a time keeping service?
*Edit* Typo's fixed