can't connect to pure-ftpd

I installed the perfect server ubuntu 10.10 with pure-ftpd. I can connect to ftp on my internal lan but haven't been able to connect externally.

Ports 20 and 21 are forwarded to my server.

Filezilla is giving me this message:
Connection attempt failed with "ECONNREFUSED - Connection refused by server".

so erm help?

 

Did you try both active and passive transfers in your FTP client?

 

yes. Filezilla gives me the same error whether I use Passive or Active.

I also tried cuteftp lite on both active and passive and it failed to connect.

 

As it is working on your LAN, it must be something with your router. Does your router support loopbacks? Also make sure that your ISP doesn't block ports 20 and 21.

 

I'm testing the external connection from outside of the lan, so the loopback issue shouldn't be an issue.

I'm also connecting with different ports from 20 and 21, just forwarding those ports to 20 and 21 on the server.

ETA:

And that was the problem. I wanted to connect via port 8021 forwarded to 21 on the server which didn't work. I changed the server port to 8021 and forwarded to that port and it works fine.