Cannot enable multiple WAN interfaces on 700/1400 SMB apppliances
To check your device u-boot version, run the "show diag" command.
The output should be: Bootloader version: 82
If your boot-loader version is 82 or older, contact Check Point Support to get a Hotfix for this issue.
A Support Engineer will provide you with a u-boot update that is compatible with your environment.
For faster resolution and verification please collect CPinfo files from the Security Management and Security Gateways involved in the case.