How can the issue of a RouterBoard1000 resetting its clock after a reboot be solved?

The best approach to resolve the issue of a RouterBoard1000 resetting its clock after a reboot is to configure the system to utilize an NTP (Network Time Protocol) client. By doing this, the router will synchronize its clock with a valid and reachable NTP server address every time it boots up or at regular intervals thereafter. This automated synchronization ensures that the clock remains accurate without requiring manual intervention.

Utilizing an NTP server is a robust solution because it not only corrects the time after a reboot but also continually adjusts the clock to account for any potential drift that might occur over time. This eliminates reliance on hardware components like a CMOS battery and avoids errors or inconsistencies that can arise from manual settings.

While other methods like writing a script or manually setting the clock can temporarily alleviate the issue, they do not provide the same level of automation and reliability offered by an NTP client configuration. Manually setting the clock, for example, requires constant human effort and may be forgotten after reboots. Thus, using an NTP client is the most effective and efficient solution for maintaining accurate time on the RouterBoard1000 after a reboot.