If you are getting the below error at SmartConsole,
Failed to save object firewall_properties.
Server error is:Validation error in field 'SynDefender active mode' at
object 'firewall_properties' @ 'properties' --> The value '0' is not in the list of valid values '1~2'. (Code: 0x800415A6, Object Validation Failed)
Create an upgrade_export then Close all SmartConsoles and open GuiDBedit.exe located at SmartConsole directory X:\Program Files\CheckPoint\SmartConsole\R7X\PROGRAM
Find the related object via CTRL+F,In this example its firewall_properties, Change the value of the property (1) and click saveall, If it gives a similar error continue to fix it with needed parameter.