Vagrant 403 forbidden error - while downloading vagrant images from analyticstack-latest box

Downloading: http://files.edx.org/vagrant-images/analyticstack-latest.box
I am trying to download the development stack for open edx using the manual -

https://edx.readthedocs.io/projects/edx-installing-configuring-and-running/en/dogwood/devstack/analytics_devstack.html#using-the-analytics-devstack

The following error is encountered while running the command vagrant up-
Downloading: http://files.edx.org/vagrant-images/analyticstack-latest.box
The requested URL returned error: 403 Forbidden

I believe that the analyticstack-latest box is private? Cant it be made public? How to proceed?
Please help.