I went home and on my local network there, ping worked from the host (Windows 7) command shell. But ping inside the VM still did not work. So I shut down the VM, removed the Host-Only network adapter, restarted the VM and then ping worked inside the VM, AND I was able to update the tutorials.
So it looks like even with VMware player, you don’t need 2 network adapters in the VM config.
The installation docs on the Sandbox home page should be updated to reflect this.
Will see if things work when I get back in the office tomorrow.