by Sam Stevens.
What os is the virtual server using? If it is windows based you could try using https://technet.microsoft.com/en-us/library/bb963907.aspx AD Explorer just to test if you can connect to the server at all.
If it isn't windows based then any windows laptop on the internet would do the job. I know there are various linux alternatives but it would be best to minimise the variables just to test if it does work.