Please forgive me if this is the wrong forum, but I can't find a better one. I have a DNS-313 which I want to set up using its built-in FTP Server. I can access it quite normally using its LAN address of http://192.168.0.10. I use DynDNS activated on both router (Netgear DG834PN) and DNS-313 with Port 21 forwarded to 192.168.0.10. The DNS-313 shows the FTP server started and connected. However, I cannot access the DNS-313 via the Internet, where my DynDNS gets me only as far as the router login page. A Port Open check on my dynamic IP xxx.xxx.xxx.xxx:21 shows that the request has been "refused" with the comment "this typically indicates that there are no services available on that port, but that it is NOT being blocked by a firewall or your ISP". It looks like a configuration problem with the DNS-313 (latest firmware 1.03) although I have followed instructions to the letter several times. Does anyone have any ideas please?