I upgraded from mIRC v6.35, to mIRC v7.44, then to mIRC v7.45. I manually set The DCC Ports to: 4000 - 4020, and they are forwarded in the router to my local IP.

The problem is in mIRC v7.44 and mIRC v7.45. When I DCC Send, the file starts sending and stops for no reason after a few moments. I have checked everything I can think of to no avail. I'm a long time mIRC user, I work with windows networks and I know how to use DMZ and Port Forwarding in the router.

mIRC v6.35 worked and so did mIRC v7.44 (for a while). What am I missing? I'm running Win 7 64Bit Ultimate.