Can't login into Opennebula

Please, describe the problem here and provide additional information below (if applicable) …

—I can login into Opennebula in the same VLAN from my PC at work, but when I login from home with different network it’s failed (checked “keep me logged in”),I had used a lot of web browsers.

Versions of the related components and OS (frontend, hypervisors, VMs):
Ubuntu 16.04 and Open Nebula 5.4
Steps to reproduce:

Current results:

Expected results: