I Just installed firewall, but now I can't stream media to my Playstation 3

I just downloaded and installed the Comodo Firewall. But when I turned on my Playstation 3 It doesn’t show my media like it used to. (Normally it would show the sharable folders automatically). I run a Sony Vaio with Win 7. I have never had an issue with either until now. So On my playstation I try to search for media servers, and I got nothing. That has never happened. I have no idea what is wrong nor how to fix it. I am pretty knowledgable with computers and networks and in most cases solve issues myself. But I have nothing on this. So right now I have my laptop that has Comodo. (Its the only one) and I live at my girlfriends place. I use her wi-fi via wireless router. The playstation can get on-line no problem, but it cannot find my sharable media on the PS3. Can someone please help me?

Welcome to the forum.

Can you provide some more detail please, such as the name of the media server you’re using, settings used in CIS etc.