Ohh jesus. Ok, you want to know what it is. here ya go. The probelm is a DNS issue under Windows XP. When the DCC starts, there are several things that happen, a ping, a ctcp, and then the file starts. When the ctcp is sent, everything goes well, but the ping is then sent very quickly, before the CTCP has returned to the Senders computer. This ping, is subsequently sent to a wrong address, because either windows or mirc doesnt resolve the ping, just sends it to the IP that is cached in your system.

Why reinstalling mIRC solved the problem? I am not sure. Maybe the cache was cleared, maybe alot of things. Like I said, I had done this before and it didn't work. So, maybe also it was the Critical Updates. Who knows. I just say what I finally did to resolve the issue. I do know that the connection was a protocol timeout because the IP address the ping was sent to did not exist. So, maybe the designers of mIRC, or Windows can do somethign about this with this information, but I am not an expert. I do know that The information I wrote in my messages was far more aimed at helping the next person than alot of the messages here. Alot of them send you Here. and give you another description of your problem. Well, I was experiencing it, so I knew the problem. Here were my steps to solve, and eventually fix the problem for me. I said I am sorry I couldnt give more information, but I am not even sure exactially why it started working again. Maybe you should spend more time helping people that need help then reading old posts.