DNS resolves to VBox IP when trying to ping specific server

[Who broke it]

When I try to ping a specific server (ws.domain. com), the DNS resovles to 192.168.56.1. This is happening to all computers that have VirtualBox installed. Disabling the network adapter isn't enough, I need to disable IPv4 from the VirtualBox Host-Only Network adapter.
I have seen this on 4 user systems so far (mix of desktops and laptops) and my own. Also, if I ping the FQDN, the same issue occurs.

I am wondering why this is happening, but more importantly what can be done to resolve this without having to disable IPv4 on all user systems.

Code: Select all

D:\Users\user>ping ws

Pinging ws.domain. com [192.168.56.1] with 32 bytes of data:
Request timed out.

Host: Win7 x64
VMs running at the time: None

[Perryg]

What does nslookup say about ws?