I have FTP working on Server 2008 R2 server using IIS 7.5. I could not get it to work through a Sonicwall firewall. I can connect and authenticate but not access files in the directory. For now, I setup a site to site VPN. Even with VPN, I still cannot access the directory.
I turned off the Windows firewall and still no luck. It only works on the local area network.
Ideally I do not want to use a site to site vpn but for now I will do whatever I have to do to get it working