Configuration issue with DriveWorks Pro... Need Assistance.

i recently took over troubleshooting an issue with Driveworks Pro - and Live Products.  The intention was to publish an existing (and working) localhost install to DMZ and publish the client access to a public IP.  Locally the application is working without issue, but from the public IP (https:// )  I am unable to login and am presented with a red box telling me: "Cannot Access Client."

I had contacted support, from which they recommended, that I review the entire installation documentation.  Keep in mind, the site is working internally, with no issue.  The only issue is accessing the client from a public ip.  I am familiar with IIS, and have reviewed the settings nothing out of the ordinary locally.  In the Driveworks application folders, I have found and have edited the driveworksconfiguser.xml file to force ssl, and to assign the proper themes and permissions. groups (tags) this includes projects and a single user.  Before I carry on, it was at the recommendation by GoEng support to edit this file ~ "because it might help."   These changes have no effect, as I still greeted with a "Cannot Access client" red box.  My question, Am I editing the incorrect file? Secondly, is there more than one file that requires editing?  Any help is appreciated.  Lastly, I am not bashing on any support group, I just want to get this thing working.  Thank you.