Before we can open ports for Utorrent, we need to figure out what ports Utorrent is using. Here is a brief walkthrough on how to do that. Go ahead and open up Utorrent.
Click Options in the menu at the top of your screen. In the list that drops down click Preferences.
Click Network Options on the left hand side of the Utorrent program. You should now see the menu shown in the screenshot above. Make sure the Enable UPnP box is unchecked. The number in the Port Used for Incoming Connections box contains the port you need to open. You can change the port number, if you want to. Please enter the port you chose into the box below.
Click the Security button near the top of the page.
Click the Application Monitor button near the left of the page.
We will list a series of lines here that will show you exactly how to setup Comodo Firewall's firewall for Utorrent. Go ahead and enter the settings shown below into the Network Control Rule menu.