Data Director for Web problem

I am having a problem with Data Director for Web. I have a server that is in the DMZ and am trying to talk to it from within the internal network. I can connect to it using the DMZ ip address using Ilogin and can use dbaccess with no problem. When I try to use DDW's sitemanger to make changes to the web pages, the sitemanager will lock up. The sitemanager will display the databases then the projects under the databases. When I try to display the webpages under these projects, sitemanager will lock and it will cause a "Checkpoint Required" which never goes away. I have to then bring Informix down and back up to clear the problem. When I move the server from the DMZ to the internal network, this condition goes away but this will not work as the outside world would not be able to access the system. By the way, this system receives data from another Informix system inside the internal network. This portion works well. I am using Redhat Linux 8 with DDW 2.00.TC5 and Linux IDS 9.40.UC5. Also the Apache webserver. Any help would be greatly appreciated.