I was reading some forums about comodo firewall. Some users are not feeling easy in dealing with firewall. Here is a video tutorial to deal with this.
1. Go to http://www.personalfirewall.comodo.co… and download the firewall
2. Do what it says to download
3. set the level on the first screen to custom
4. go to the security tab on the top of the comodo firewall window. then add/remove zone click on your network.
5. stay on that tab and click on define a trusted application for all the applications that you trust and allow to run, the banned application is for files that you dont trust or is causing problems.