At some point a few months ago I was able to publish
WebHelp successfully from one server behind our firewall to a IIS
server on our DMZ network. Now, whenever I try to Generate Primary
Layout / Publish, it prompts meto login to the server with the
usual windows "Username / Password / Domain. The pushing server is
joined to our domain but the IIS server is a standalone workgroup.
UNC path access works great to and from both servers. Terminal
service works great. Firewall logs show no errors and shouldn't
given they're accessible by UNC.