What to do when several devices inside PoD remain unreachable?

When you try to RDP to FortiFied and get the below response. When you try to connect to the Jumpbox - you may get the same response as below. 

While connecting to other devices such as FGT-EDGE HTTPS, you may see the same response as above/ When you try to connect using SSH, you will see an error message something like below.

This points to an error in the networking components of various VMs inside your environment. 

You are advised to take snapshots of the error message, use a public login (or another email address) to be used to log in to LMS and register the user in the class and on to a new envrionment to carry on with the class. Subsequently, raise a support ticket from the portal for support team to investigate and fix the root cause.