We just took over a company with SBS 2003 RWW for their remote access. They were not doing backups, so we installed a network attached HD for backups and the install software installs .net 2.0. We did not realize there was a conflict with SBS and .net 2.0 but it has broken the RWW access.
I have uninstalled .net 2.0 and re-registered .net 1.1 but now when users access the secure site, they can get to the welcome page, but when you click on RWW they receive a "Directory Listing Denied
This Virtual Directory does not allow contents to be listed." error or simply a "permissions denied" error.
Everything was working fine until the .net install. so I don't think it has anythign to do with the ports on the router