We've just finished installing Revit Server 2013. Revit Admin comes up fine, along with listing a couple of project folders we manually copied into place. We've got the RSN.ini files in place and when we go to open a project we can see the server listed. If we click on the server to connect it pauses for a bit then a pop-up says "This operation could not be completed. Please try again. (contact administrator etc)"
I've gone through and opened up ports 80 and 808 on the router's firewall, the Win2k8R2 firewall, the workstation's Win 7 firewall, and even added connection rules to Symantec Endpoint Protection which also handles all the firewall policies on the network. I've tried using Netmon and Procmon to see what incoming/outgoing ports Revit is using.