At this point we fixed everything on our end but while searching I saw some users still had problems with that. So add a new exception with torchligh2.exe for private or public depending of your network preferences (or both if you don't care). exe (the modlauncher.exe instead of torchlight2.exe). Torchlight 2 should be in this list but with the wrong.
Note that the red firewall error may stay there even if you fixed it I found quite a lot of bits & pieces on this subreddit, but in an effort to gather everything at the same place, here's all the things we needed to do ( Everyone in the group needs to do that, unless explicitly stated otherwise): Little did we know that we would spend hours troubleshooting why the whole MP thing wasn't working. I was searching for a game that could be played with more than 4 players a few days ago, and we finally chose Torchlight 2.