I setup FTP according the instructions provided here with the exception of the ISA steps (I'm using port forwarding on a firewall appliance to route the public IP address/DNS name). When I FTP to the site from the internet I'm prompted for username and password as expected. The FTP User Sessions for the Default FTP Site indicates a session exists for the internet IP address and shows the correct connected username. The process seems to hang at that point without connectecting or showing the FTP directory contents.

 

What makes it even more strange is that once or twice the connection completed and provided a directory listing. For what it's worth RWW works without any issues. I'm at a loss as to what to do to resolve this issue.

 

Helpful advice appreciated.