How to fix your Playstation Network Connection Issues?

I can't connect to my friends on while trying to play Call of Duty: Modern Warfare 2. I think I have finally figured out the solution for us PS3 users. It's under the network settings. Scroll down to media settings at the bottom of the internet connections menu. All you have to do is disable the media servers. If that doesn't work, it may be an issues with your router. Buy a new one. If that's not an option then clear your main web browser on your home pc, punch in 192.168.o.1, should be at your motem's menu lobby, then go to advanced settings, turn your wpnp on, save, then back out to lobby, enter the firewall settings, turn the firewall off, save!!!!