Forums Connection Issues Problems with dcc ports!

I have a curious problem:
My configuration is:
dcc options
dcc ports: 7891-7895
I already checked my router and it's no blocking that range of ports.
When I try to send a file or try to begin a chat window to someone, mirc opens a socket in a correct port (between 7891-7895).. I checked it with: netstat -an -p tcp
But.. but.. but.. my friend catchs my mirc's ctcp message with:
ctcp 1:*:*:$1-
and he sees something like this:
DCC SEND file.xxx 12384983 10456 34820
Can you see the number 10456? It's supposed to be the number port! But.. the socket was opened in the range of 7891-7895.
Of course, my friend got the message "unable to connect".
I really can't understand what is happening.
I'm using mirc 6.12
What's wrong?
Thanks

Try to verify that mIRC itself is sending the right port with /debug @debug

Some routers have been reported to change the port in dcc messages (to allow them to set up temporary forwarding), however even if the port were changed, the router should still be forwarding back to your local port when your friend connects, which doesn't seem to be the case. I'm not sure if this behaviour can be disabled (maybe a silly hidden option somewhere around UPnP settings).

If you have the resources, you could try reproduce the problem without your router, or setup a local IRC server and send dcc requests between two local clients.

Hope that helps

[edit: btw if your friend is using ctcp 1:*:*:$1- in his remotes he's in for a rude shock. :P]

The problem was auto-fixed (?) I don't know what happened but now it's OK.
Thanks you for your help.