I just stumbled across this forum, handy to know there is somewhere around for queries. I bought ESET just before Christmas, was using Windows Firewall previously, and was able to use DC++ fine. I just used DC++ for the first time since installing, and can only get it to work in passive mode. All the settings are correct for Active mode, so the only thing I can think is that ESET's firewall doesn't like UPNP (or at least DC++'s use of it). I'm set up in Interactive mode and have allowed DC++, I've got UPNP enabled on my router, and I just did the upgrade to v366. However I still have the same problem, any tips for a new ESET user ?