Explanation:
Management High Availability
Upgrade the Management High Availability Servers
1 Synchronize the Standby Smart Center Servers (SCSs) with the Active SCS by selecting Synchronize in the Policy > Management High Availability window.
2 Upgrade all the SCSs in the organization.
3 Login to SmartDashboard via the Active SCS. For each Standby SCS, change the software version in Check Point Products listbox of its network objects window.
4 Synchronize the Standby SCSs with the Active SCS. The synchronization status is expected to be collision. This occurs on account of the Upgrade operation.
5 Make sure that you select the Active SCS as the dominant SCS, in order that all the Standby SCSs will be overwritten. Once again, synchronize the remaining Standby SCSs to the Active SCS.
Not 4:
You can not sync NGX with NG.

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