Problem with Starting Point


I am new to HTB and I am trying to do the starting point thing. I have succesfully managed to connect to the VPN on a Kali virtual machine running in virtualbox. I can see the routes added using the route command. However, when I try to ping or nmap the machine I started, I get an “host unreachable” message. I have tried to switch to the tcp VPN and it didn’t solve my problem. Any help would be appreciated.