10013 error (AccessDenied) on Silverlight Socet application

I am writing silverlight 3 application which is working o开发者_如何学运维n network. It works like client-server application. There is WinForm application for server and silverlight application for client.

I use TcpListener on server and connect from client to it with Socket.

In local network it works fine, but when I try to use it from internet it don't connect to server.

I use IP address on local network and real IP with port number for internet version.

I get error 10013 AccessDenied.

Port number is correct and access policy exist.

Firewall is turned of.

Where is the problem?

Thanks.

Have you tried to check the general availability of the connection from your machine to the Internet server with telnet ?

The problem was that computer, where hosted website hasn't real IP address, and I couldn't connect to it from internet. I added Real IP address and everything works fine now.