Starting Point: Destination Host Unreachable

Open VPN Connection: Initialization Sequence Completed
I try to ping Starting Point machine but host down.

root@kali:~# ping
PING ( 56(84) bytes of data.
From icmp_seq=1 Destination Host Unreachable
From icmp_seq=2 Destination Host Unreachable
From icmp_seq=3 Destination Host Unreachable
— ping statistics —
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4072ms

After I try to ping another active machines or retire machines works well.

root@kali:~# ping
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=63 time=74.6 ms
64 bytes from icmp_seq=2 ttl=63 time=75.3 ms
64 bytes from icmp_seq=3 ttl=63 time=71.7 ms
— ping statistics —
3 packets transmitted, 3 received, 0% packet loss, time 2003ms

EDIT: Downloaded the Starting Point .ovpn file again and now worked.

Active machines operate on a different VPN pack than the Starting Point machines. Make sure you are using the correct VPN. In my experience, you should not be able to access the Active machines from the Starting Point VPN connection.