RAK7431 Time synchronization in LNS V1.0.3

Hi Support

For the RAK7431, it is observed that the Time is only synchronized upon joined to the LNS V1.0.3(Loriot in my case). How to keep the time sync for operation without resetting it to re-join? Current RAK7431 firmware version available & deployed is 1.1.0069_Release.

Thanks