In order to access Estimably, the end-users (facilitator and players) need to have access to the following 3 websites (not the VersionOne instance iteself).
Try to access each of these websites directly to see if you are able to connect:
In most heavily secured networks, we find the above 3 websites may need to added to a white list on the routers and possibly some internal proxy settings will need to a be adjusted.
If access to the above websites is working properly, then the likely issue we see is something blocking the access from within the browser - like an AdBlocker type extension. Try accessing from another browser or add the URLs above to the exception list and see if that works.
If you still have issues, please contact CN/V1 Support for more information.