CheckPoint CPUSE agent issues - No packages displayed

In some cases, when you try to upgrade Gaia at R77.30, you can find yourself in this situation:

gw-8d875c> installer download
**             ************************************************************************* **
**                         Connection error. Packages list might be incomplete           **
**             ************************************************************************* **
Show packages: no packages to display

I try to reboot the firewall to fix this problem, but it persists.

If I check the installer status an error is reported on Network connection

Install Gaia R77.30 on Lenovo server X3650 M5

A few days ago I had to install a checkpoint cluster with two server Lenovo System x3650 M5.
I downloaded the Gaia R77.30 iso file and created a bootable USB flash drive using ISOmorphic.
When I tried to boot  the system from USB I had the following result:

Boot Failed!