NTP

When using external time servers (NTP servers) it must be taken into account that they must be entered in all MUs.

This must be done in SE Manager under
  Hardware -> Units (SE<model>) -> <unit> (MU) -> Management, tab System time.

In case of two locations, the NTP servers in use can be different, but the MUs of an SE Server must be always the same.

Further details can be found in the manual “Administration and Operation“ [1] and in the online help of the SE Manager.