Cannot access virtual machine via ping from the physical host machine
Solution 1:
In the settings for this VM, what kind of attachment is configured for your network adapter (Settings -> Network -> Adapter 1 tab)?
If you're set to the default (NAT), then you probably want to switch to use bridged networking. You'll be asked to associate a physical network interface. Pick the one that is on your 192.168.10 network.
If none if this is news to you, or if that doesn't work, I can try to assist further.
For more background, see the networking section of the VirtualBox manual.