I've got a Lubuntu 17.04 web server (Sinatra) running in VirtualBox on my Windows 10 Desktop. The VM is configured to use bridged networking, and is assigned an IP address on my local network. (It is an IP like 192.168.0.x, same as the host). What I'd like to be able to do is to open the web page being served on the VM in a browser on the host, but when I try, I don't connect. Connecting to the page in a browser on the guest works fine.
I've spent quite a bit of time fiddling with it, and can't seem to find a question with the same situation. What kinds of things could be causing this issue?