Hello~ i'm using the 3com router 3c855, and using mirc 6.03.
I have already to set the DCC port 1024-1050 in mIRC, and set that port range to port forwarding in router.
If I connected all channel but do not send/receive, that must be no problem.
But, when I am sending/receiving in DCC always interrupt, afterward will disconnect all channel. So i need to reconnect all channel and resend the file. But the problem still continous.